Public bug reported:
Coincident with the host command now outputing the names and IP addresses of
the DNS servers, as well
as the host information requested, ssh seems to be getting the same
(multi-line) response which it then
treats as a round-robin response. As a result, if the host is down, the ssh
connection is redirected
to the first DNS server in the list, resulting in a "possible DNS spoofing"
error.
This is with the packages:
bind9-dnsutils 1:9.16.1-0ubuntu2.9 amd64 Clients provided with BIND 9
bind9-host 1:9.16.1-0ubuntu2.9 amd64 DNS Lookup Utility
bind9-libs:amd64 1:9.16.1-0ubuntu2.9 amd64 Shared Libraries used by BIND 9
openssh-client 1:8.2p1-4ubuntu0.3 amd64 secure shell (SSH) client, for
secure access to remote machines
On:
Description: Ubuntu 20.04.3 LTS
Release: 20.04
Expected result:
"connection timed out" error.
Actual result:
"possible DNS spoofing" error.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: bind9-host 1:9.16.1-0ubuntu2.9
Uname: Linux 5.10.60.1-microsoft-standard-WSL2 x86_64
ApportVersion: 2.20.11-0ubuntu27.21
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Nov 24 15:48:40 2021
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: bind9
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: bind9 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal uec-images
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1952131
Title:
Extra output from host command causes issue with ssh
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1952131/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
