Package: stunnel4 Version: 3:5.39-2 Hi, i am observing random segfaults in dmesg. I am using stunnel as a wrapper for suucp to uucp port 4031 to port 540 from xinetd with an letsencrypt certificate.
As we are segfaulting in libpthread and libcrypt i suspect
a stack/memory corruption in stunnel itself.
This is a fresh Stretch install - amd64
root@pax:~# egrep -v "^;" /etc/stunnel/stunnel-suucp.conf
cert = /etc/getssl/pax.zz.de/pax.zz.de_chain.pem
key = /etc/getssl/pax.zz.de/pax.zz.de.key
sslVersion = all
chroot = /var/lib/stunnel4/
setuid = stunnel4
setgid = stunnel4
pid = /stunnel4.pid
socket = l:TCP_NODELAY=1
socket = r:TCP_NODELAY=1
connect = uucp
service = suucp
foreground = quiet
root@pax:~# cat /etc/xinetd.d/uucp
# Unencrypted uucp service - we only want to be reachable by stunnel
# so bind to 127.0.0.1
service uucp
{
disable = no
socket_type = stream
protocol = tcp
wait = no
bind = 127.0.0.1
user = uucp
server = /usr/sbin/uucico
server_args = -l
}
service suucp
{
disable = no
socket_type = stream
protocol = tcp
flags = IPv6
wait = no
user = root
server = /usr/bin/stunnel4
server_args = /etc/stunnel/stunnel-suucp.conf
}
[32098.669484] stunnel4[4132]: segfault at 240 ip 00007f417dbc0d93 sp
00007f417bc8ea00 error 4 in libcrypto.so.1.1[7f417da74000+265000]
[32736.537627] stunnel4[6597]: segfault at 240 ip 00007f2339932313 sp
00007f23379ff970 error 4 in libcrypto.so.1.1[7f23397e5000+265000]
[41098.438555] stunnel4[9352]: segfault at 1c ip 00007f9bf6e39f30 sp
00007f9bf5a8ec08 error 4 in libpthread-2.24.so[7f9bf6e2e000+18000]
[42337.298315] stunnel4[14517]: segfault at 240 ip 00007f8002c0cd93 sp
00007f8000cdaad0 error 4 in libcrypto.so.1.1[7f8002ac0000+265000]
[49198.505362] stunnel4[10464]: segfault at 244 ip 00007f56b13d1fb8 sp
00007f56af49fd20 error 4 in libcrypto.so.1.1[7f56b1285000+265000]
[50998.619688] stunnel4[17914]: segfault at 1c ip 00007fe87382af30 sp
00007fe87247fc08 error 4 in libpthread-2.24.so[7fe87381f000+18000]
[52836.434037] stunnel4[25946]: segfault at 240 ip 00007f4fe98ffd93 sp
00007f4fe79cda40 error 4 in libcrypto.so.1.1[7f4fe97b3000+265000]
[53136.350231] stunnel4[27301]: segfault at 240 ip 00007fedf08ead93 sp
00007fedee9b8a00 error 4 in libcrypto.so.1.1[7fedf079e000+265000]
[84897.744112] stunnel4[8083]: segfault at 1c ip 00007f9fd735ef30 sp
00007f9fd5fb3be8 error 4 in libpthread-2.24.so[7f9fd7353000+18000]
[85237.334569] stunnel4[9483]: segfault at 240 ip 00007f0615cdfd93 sp
00007f0613dadb10 error 4 in libcrypto.so.1.1[7f0615b93000+265000]
[91836.292230] stunnel4[7827]: segfault at 240 ip 00007f417793fd93 sp
00007f4175a0da00 error 4 in libcrypto.so.1.1[7f41777f3000+265000]
[99636.142615] stunnel4[8642]: segfault at 1c ip 00007f11125dcf30 sp
00007f1111231be8 error 4 in libpthread-2.24.so[7f11125d1000+18000]
[102335.736430] stunnel4[20008]: segfault at 1c ip 00007f5ab8306f30 sp
00007f5ab6f5bbe8 error 4 in libpthread-2.24.so[7f5ab82fb000+18000]
[109497.447821] stunnel4[17356]: segfault at 240 ip 00007fab767efd93 sp
00007fab748bda00 error 4 in libcrypto.so.1.1[7fab766a3000+265000]
[115197.248969] stunnel4[8274]: segfault at 240 ip 00007f809dc9ed93 sp
00007f809bd6ca00 error 4 in libcrypto.so.1.1[7f809db52000+265000]
[117035.541662] stunnel4[15658]: segfault at 240 ip 00007fbc067f8d93 sp
00007fbc048c6b10 error 4 in libcrypto.so.1.1[7fbc066ac000+265000]
[132335.622691] stunnel4[14557]: segfault at 1c ip 00007f766cb1ff30 sp
00007f766b774be8 error 4 in libpthread-2.24.so[7f766cb14000+18000]
[135935.466774] stunnel4[29958]: segfault at 240 ip 00007fe5238add93 sp
00007fe52197ba00 error 4 in libcrypto.so.1.1[7fe523761000+265000]
[136796.909823] stunnel4[1202]: segfault at 240 ip 00007ff6fc05fd93 sp
00007ff6fa12da00 error 4 in libcrypto.so.1.1[7ff6fbf13000+265000]
[137696.921222] stunnel4[5039]: segfault at 240 ip 00007fcf98028d93 sp
00007fcf960f6ad0 error 4 in libcrypto.so.1.1[7fcf97edc000+265000]
[140435.471292] stunnel4[16319]: segfault at 240 ip 00007f700b56ed93 sp
00007f700963ca00 error 4 in libcrypto.so.1.1[7f700b422000+265000]
[144035.655488] stunnel4[31764]: segfault at 240 ip 00007fc4363b6d93 sp
00007fc434484ad0 error 4 in libcrypto.so.1.1[7fc43626a000+265000]
[144896.788309] stunnel4[3146]: segfault at 244 ip 00007fed81b46fb8 sp
00007fed7fc14d20 error 4 in libcrypto.so.1.1[7fed819fa000+265000]
[161096.587654] stunnel4[7428]: segfault at 1c ip 00007f0bd90b1f30 sp
00007f0bd7d06c08 error 4 in libpthread-2.24.so[7f0bd90a6000+18000]
[174634.801494] stunnel4[32169]: segfault at 1c ip 00007f146ef5ff30 sp
00007f146dbb4be8 error 4 in libpthread-2.24.so[7f146ef54000+18000]
[182696.226157] stunnel4[1479]: segfault at 1c ip 00007fbb38300f30 sp
00007fbb36f55be8 error 4 in libpthread-2.24.so[7fbb382f5000+18000]
[196495.985838] stunnel4[26319]: segfault at 1c ip 00007f5f25406f30 sp
00007f5f2405bc08 error 4 in libpthread-2.24.so[7f5f253fb000+18000]
[204035.210745] stunnel4[24746]: segfault at 1c ip 00007ffaf7163f30 sp
00007ffaf5db8be8 error 4 in libpthread-2.24.so[7ffaf7158000+18000]
[206695.912346] stunnel4[3402]: segfault at 240 ip 00007f072262cd93 sp
00007f07206faa00 error 4 in libcrypto.so.1.1[7f07224e0000+265000]
[210895.889110] stunnel4[20911]: segfault at 240 ip 00007fac38237d93 sp
00007fac36305a40 error 4 in libcrypto.so.1.1[7fac380eb000+265000]
[215395.690030] stunnel4[6923]: segfault at 240 ip 00007fa756ec2d93 sp
00007fa754f90a00 error 4 in libcrypto.so.1.1[7fa756d76000+265000]
[228333.622039] stunnel4[27747]: segfault at 240 ip 00007f1f7c4bad93 sp
00007f1f7a588a00 error 4 in libcrypto.so.1.1[7f1f7c36e000+265000]
[241495.273124] stunnel4[18510]: segfault at 240 ip 00007f8aac3c2d93 sp
00007f8aaa490a40 error 4 in libcrypto.so.1.1[7f8aac276000+265000]
[249333.742652] stunnel4[19258]: segfault at 1c ip 00007fd24eee6f30 sp
00007fd24db3bbe8 error 4 in libpthread-2.24.so[7fd24eedb000+18000]
[251433.419548] stunnel4[28228]: segfault at 240 ip 00007f5353813d93 sp
00007f53518e1ad0 error 4 in libcrypto.so.1.1[7f53536c7000+265000]
[278094.803689] stunnel4[11632]: segfault at 240 ip 00007f5ff4333d93 sp
00007f5ff2401a40 error 4 in libcrypto.so.1.1[7f5ff41e7000+265000]
[281433.642149] stunnel4[25394]: segfault at 1c ip 00007fedc34caf30 sp
00007fedc211fc08 error 4 in libpthread-2.24.so[7fedc34bf000+18000]
[285333.345969] stunnel4[9053]: segfault at 240 ip 00007f7641028d93 sp
00007f763f0f6a00 error 4 in libcrypto.so.1.1[7f7640edc000+265000]
[288294.719145] stunnel4[21062]: segfault at 1c ip 00007f9333222f30 sp
00007f9331e77c08 error 4 in libpthread-2.24.so[7f9333217000+18000]
[298194.515902] stunnel4[29813]: segfault at 240 ip 00007f92ccb1dd93 sp
00007f92cabeba40 error 4 in libcrypto.so.1.1[7f92cc9d1000+265000]
[302732.693844] stunnel4[15932]: segfault at 240 ip 00007fc91b17ad93 sp
00007fc919248b10 error 4 in libcrypto.so.1.1[7fc91b02e000+265000]
[318633.882232] stunnel4[20900]: segfault at 240 ip 00007fe7abe1bd93 sp
00007fe7a9ee9ad0 error 4 in libcrypto.so.1.1[7fe7abccf000+265000]
[320730.642763] stunnel4[30857]: segfault at 240 ip 00007f555c857d93 sp
00007f555a925ad0 error 4 in libcrypto.so.1.1[7f555c70b000+265000]
[323732.514376] stunnel4[11518]: segfault at 1c ip 00007f98aacf0f30 sp
00007f98a9945be8 error 4 in libpthread-2.24.so[7f98aace5000+18000]
[326732.593843] stunnel4[24480]: segfault at 1c ip 00007f83885e7f30 sp
00007f838723cbe8 error 4 in libpthread-2.24.so[7f83885dc000+18000]
[342293.622747] stunnel4[26113]: segfault at 1c ip 00007f2b2370af30 sp
00007f2b2235fbe8 error 4 in libpthread-2.24.so[7f2b236ff000+18000]
[347129.871721] stunnel4[14286]: segfault at 240 ip 00007f911f5c9d93 sp
00007f911d697ad0 error 4 in libcrypto.so.1.1[7f911f47d000+265000]
[354042.281496] stunnel4[12258]: segfault at 240 ip 00007f9d5ab06d93 sp
00007f9d58bd4a00 error 4 in libcrypto.so.1.1[7f9d5a9ba000+265000]
[368693.306146] stunnel4[8397]: segfault at 1c ip 00007f99112e5f30 sp
00007f990ff3abe8 error 4 in libpthread-2.24.so[7f99112da000+18000]
[374431.444302] stunnel4[31953]: segfault at 240 ip 00007febe07a6d93 sp
00007febde874ad0 error 4 in libcrypto.so.1.1[7febe065a000+265000]
[386731.805511] stunnel4[18927]: segfault at 240 ip 00007f176126ad93 sp
00007f175f338a00 error 4 in libcrypto.so.1.1[7f176111e000+265000]
[389731.485036] stunnel4[30926]: segfault at 1c ip 00007fad4b941f30 sp
00007fad4a596be8 error 4 in libpthread-2.24.so[7fad4b936000+18000]
[398992.871835] stunnel4[5668]: segfault at 240 ip 00007f091697fd93 sp
00007f0914a4da00 error 4 in libcrypto.so.1.1[7f0916833000+265000]
Flo
--
Florian Lohoff [email protected]
UTF-8 Test: The 🐈 ran after a 🐁, but the 🐁 ran away
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