[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Mathew Hodson]

** Bug watch removed: Sourceware.org Bugzilla #14505
   https://sourceware.org/bugzilla/show_bug.cgi?id=14505

** No longer affects: eglibc (Ubuntu)

** Project changed: eglibc => glibc

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in GLibC:
  New
Status in eglibc source package in Precise:
  Fix Released

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[helodron]

Working!! :) thx :D

ii  libc-bin 2.15-0ubuntu10.18  
   
ii  libc-dev-bin 2.15-0ubuntu10.18  
   
ii  libc62.15-0ubuntu10.18  
   
ii  libc6-dev2.15-0ubuntu10.18  
   

strace -e connect nc -zv ya.ru http
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)
Connection to ya.ru 80 port [tcp/http] succeeded!

python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
('2a02:6b8::3', 0, 0, 0)
('2a02:6b8::3', 0, 0, 0)

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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Invalid
Status in eglibc source package in Precise:
  Fix Released

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, 

[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

Test failes on 2.15-0ubuntu10.17, succeeds on 2.15-0ubuntu10.18.
Tested on docker image ubuntu:12.04 (b384dd9703db).

** Attachment added: "docker.txt"
   
https://bugs.launchpad.net/eglibc/+bug/1674776/+attachment/4844145/+files/docker.txt

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Invalid
Status in eglibc source package in Precise:
  Fix Released

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Steve Beattie]

** Changed in: eglibc (Ubuntu)
   Status: Confirmed => Invalid

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Invalid
Status in eglibc source package in Precise:
  Fix Released

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Launchpad Bug Tracker]

This bug was fixed in the package eglibc - 2.15-0ubuntu10.18

---
eglibc (2.15-0ubuntu10.18) precise-security; urgency=medium

  * REGRESSION UPDATE: IPv6 addresses not being returned from a
dual-stack ipv4-ipv6 host query.
- Revert patches/any/CVE-2016-3706.diff (LP: #1674776)

 -- Steve Beattie   Thu, 23 Mar 2017 11:38:25 -0700

** Changed in: eglibc (Ubuntu Precise)
   Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Confirmed
Status in eglibc source package in Precise:
  Fix Released

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Steve Beattie]

Dmitry, thanks for the analysis. It looks like the conversion to using
gethostbyname4_r for PF_UNSPEC only was for
https://sourceware.org/bugzilla/show_bug.cgi?id=14505 (glibc git commit
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=8479f23aa1d5e5477a37f46823856bdafaedfa46
). This change is in 14.04's (trusty) libc, but not 12.04 (precise).

Can people confirm that they're only seeing this on 12.04? The reason I
ask is that the exact same patch for CVE-2016-3706 was applied in 14.04
as well as 12.04.

Using both the testcase you posted in the upstream glibc bug report and
the reproducer from upstream #14505, I am now able to reproduce this
with the libc 2.15-0ubuntu10.17 from precise, and confirm that things
behaved correctly with eglibc 2.15-0ubuntu10.15. I also get correct
results with eglibc 2.19-0ubuntu6.11 in 14.04.

At this point I'm inclined to revert the fix for CVE-2016-3706 for 12.04
as a less risky option, despite the appreciated effort you've taken,
Dmitry, to come up with a patch to fix the issue. There is an eglibc
package for precise that has that revert building in the ubuntu-
security-proposed ppa https://launchpad.net/~ubuntu-security-
proposed/+archive/ubuntu/ppa/ and would very much appreciate any testing
you can give it.

Thanks, and my apologies for how this update has gone.

** Bug watch added: Sourceware.org Bugzilla #14505
   https://sourceware.org/bugzilla/show_bug.cgi?id=14505

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2016-3706

** Also affects: eglibc (Ubuntu Precise)
   Importance: Undecided
   Status: New

** Changed in: eglibc (Ubuntu Precise)
   Importance: Undecided => Critical

** Changed in: eglibc (Ubuntu Precise)
   Status: New => In Progress

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Confirmed
Status in eglibc source package in Precise:
  In Progress

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 

[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Bug Watch Updater]

** Changed in: eglibc
   Status: Unknown => New

** Changed in: eglibc
   Importance: Unknown => Medium

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  New
Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

** Bug watch added: Sourceware.org Bugzilla #21295
   https://sourceware.org/bugzilla/show_bug.cgi?id=21295

** Also affects: eglibc via
   https://sourceware.org/bugzilla/show_bug.cgi?id=21295
   Importance: Unknown
   Status: Unknown

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Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc:
  Unknown
Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

** Patch removed: 
"0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-IPv4-when.patch"
   
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1674776/+attachment/4843189/+files/0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-IPv4-when.patch

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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

The same patch has been submitted upstream, see libc-alpha@ and BZ#21295.
However it is not likely to be accepted because newer libc versions use a 
different interface (gethostbyname4_r) in libnss_dns module which activates a 
different libc codepath avoiding the issue by requesting IPv4 and IPv6 entries 
in parallel.

** Patch added: "getaddrinfo: do not overwrite IPv6 IPs with IPv4 when using  
AF_UNSPEC"
   
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1674776/+attachment/4843357/+files/0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-IPv4-when.patch

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

To manage notifications about this bug go to:

[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Ubuntu Foundations Team Bug Bot]

The attachment "0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-
IPv4-when.patch" seems to be a patch.  If it isn't, please remove the
"patch" flag from the attachment, remove the "patch" tag, and if you are
a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: patch

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

** Patch added: 
"0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-IPv4-when.patch"
   
https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1674776/+attachment/4843189/+files/0001-getaddrinfo-do-not-overwrite-IPv6-IPs-with-IPv4-when.patch

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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Dmitry Bilunov]

It seems that sequential A-type DNS reply data overwrites data returned
by -type DNS reply data prior to that.

convert_hostent_to_gaih_addrtuple: replacing "free(*result);" with
"while(*result) result = >next;" does the trick.

You can try it out on libc6=2.15-0ubuntu10.17 by a simple change:

cd157: e8 84 1e f5 ff -> e8 56 01 00 00
cd2b2: 66 66 66 66 66 2e 0f 1f 84 00 00 -> e3 08 49 89 cf 48 8b 09 eb f6 c3

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[helodron]

ii  libc-bin  2.15-0ubuntu10.17 
ii  libc-dev-bin  2.15-0ubuntu10.17 
ii  libc6 2.15-0ubuntu10.17 
ii  libc6-dev 2.15-0ubuntu10.17 

dont working too

strace -e connect nc -zv ya.ru http
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
('93.158.134.3', 0)
('2a02:6b8::3', 0, 0, 0)

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, 

[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[helodron]

not working :(

ii  libc-bin  2.15-0ubuntu10.17~test.1  
ii  libc-dev-bin  2.15-0ubuntu10.17~test.1  
ii  libc6 2.15-0ubuntu10.17~test.1  
ii  libc6-dev 2.15-0ubuntu10.17~test.1  

strace -e connect nc -zv ya.ru http
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT 
(No such file or directory)
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT 
(No such file or directory)
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT 
(No such file or directory)
connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 ENOENT 
(No such file or directory)
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) = 0
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
('213.180.204.3', 0)
('2a02:6b8::3', 0, 0, 0)

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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, 

[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Steve Beattie]

Hi, thanks for reporting your issue. I think this is actually the fix
for CVE-2015-5180 (due to an internal ABI change around T_UNSPEC). I
have uploaded a test version of eglibc with the commit to address that
issue reverted to https://launchpad.net/~ubuntu-security-
proposed/+archive/ubuntu/ppa/ ; is it possible to test the version there
to confirm or disprove that reverting that addresses your issue?

Thanks.

** CVE added: http://www.cve.mitre.org/cgi-
bin/cvename.cgi?name=2015-5180

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You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

To manage notifications about this bug go to:
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[Touch-packages] [Bug 1674776] Re: getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade libc6 in Ubuntu Precise

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: eglibc (Ubuntu)
   Status: New => Confirmed

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1674776

Title:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise

Status in eglibc package in Ubuntu:
  Confirmed

Bug description:
  getaddrinfo() dont work correct with ipv4+ipv6 addreses aftrer upgrade
  libc6 in Ubuntu Precise.

  server has only ipv6 address.
  Ubuntu 12.04.5 LTS \n \l
  libc6 = 2.15-0ubuntu10.16

  host ya.ru
  YA.ru has address 93.158.134.3
  YA.ru has address 213.180.193.3
  YA.ru has address 213.180.204.3
  YA.ru has IPv6 address 2a02:6b8::3

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)

  nc: connect to ya.ru port 80 (tcp) failed: Network is unreachable

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('93.158.134.3', 0)
  ('2a02:6b8::3', 0, 0, 0)

  before update libc6=2.15-0ubuntu10.15

  strace -e connect nc -zv ya.ru http
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET, sin_port=htons(53), 
sin_addr=inet_addr("127.0.0.1")}, 16) = 0
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = 0
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("93.158.134.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.193.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_UNSPEC, sa_data="\0\0\0\0\0\0\0\0\0\0\0\0\0\0"}, 16) 
= 0
  connect(3, {sa_family=AF_INET, sin_port=htons(80), 
sin_addr=inet_addr("213.180.204.3")}, 16) = -1 ENETUNREACH (Network is 
unreachable)
  connect(3, {sa_family=AF_INET6, sin6_port=htons(80), inet_pton(AF_INET6, 
"2a02:6b8::3", _addr), sin6_flowinfo=0, sin6_scope_id=0}, 28) = -1 
EINPROGRESS (Operation now in progress)

  Connection to ya.ru 80 port [tcp/http] succeeded!

  python -c 'import socket; print socket.getaddrinfo("ya.ru.", 0, 
socket.AF_UNSPEC, 0)[0][4]'; python -c 'import socket; print 
socket.getaddrinfo("ya.ru.", 0, socket.AF_INET6, 0)[0][4]'
  ('2a02:6b8::3', 0, 0, 0)
  ('2a02:6b8::3', 0, 0, 0)

  I think problem with patch: CVE-2016-3706: getaddrinfo: stack overflow in 
hostent conversion [BZ #20010]
  
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=blobdiff;f=sysdeps/posix/getaddrinfo.c;h=df6ce8b13e3897f3ed47877b029da39abafe9f25;hp=d2283bcd4ad4fe7e41cf9c6ee74ec8c63ab32e34;hb=762aafec34478bcef01a16acf1959732ab8bb2b6;hpb=e97fb84811238c627f93e5e703a11eb841601947;ds=sidebyside

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