OpenSSH 7.7 -w tunnel bug
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openssh (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Cosmic |
Fix Released
|
Medium
|
Karl Stenerud |
Bug Description
[Impact]
A regression in OpenSSH 7.7 breaks tunnelling via the -w switch in the ssh command.
[Test Case]
# lxc launch ubuntu:cosmic tester && lxc exec tester bash
# apt update && \
apt dist-upgrade -y && \
sed -i 's/PasswordAuth
service sshd restart && \
echo ubuntu:ubuntu | chpasswd
# ssh -w any ubuntu@localhost
ubuntu@localhost's password:
Tunnel device open failed.
Could not request tunnel forwarding.
[Regression Potential]
This is already fixed and tested upstream, and thus has little regression potential.
[Original Description]
Just upgraded to cosmic, which picks up OpenSSH 7.7.
OpenSSH 7.7 has known bug https:/
The OpenSSH bug contains a trivial two-line patch to fix the bug. I downloaded the Ubuntu openssh package source, applied the patch and rebuilt, and can confirm that is does fix the problem.
Any chance we could get this patch backported to Cosmic?
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: openssh-client 1:7.7p1-4
ProcVersionSign
Uname: Linux 4.18.0-10-generic x86_64
ApportVersion: 2.20.10-0ubuntu13
Architecture: amd64
Date: Thu Nov 1 09:36:16 2018
ProcEnviron:
TERM=xterm-
PATH=(custom, no user)
XDG_RUNTIME_
LANG=en_US.UTF-8
SHELL=/bin/bash
RelatedPackageV
ssh-askpass N/A
libpam-ssh N/A
keychain N/A
ssh-askpass-gnome N/A
SSHClientVersion: OpenSSH_7.7p1 Ubuntu-4, OpenSSL 1.0.2n 7 Dec 2017
SourcePackage: openssh
UpgradeStatus: Upgraded to cosmic on 2018-11-01 (0 days ago)
Related branches
- Christian Ehrhardt (community): Approve
- Canonical Server: Pending requested
-
Diff: 60 lines (+38/-0)3 files modifieddebian/changelog (+7/-0)
debian/patches/fix-broken-tunnel-forwarding.patch (+30/-0)
debian/patches/series (+1/-0)
Changed in openssh (Ubuntu): | |
assignee: | nobody → Karl Stenerud (kstenerud) |
Changed in openssh (Ubuntu Cosmic): | |
assignee: | nobody → Karl Stenerud (kstenerud) |
status: | New → In Progress |
description: | updated |
Changed in openssh (Ubuntu): | |
status: | New → In Progress |
Changed in openssh (Ubuntu): | |
assignee: | Karl Stenerud (kstenerud) → nobody |
@Colin - will you as usual handle the ssh bug here or should one of the server team take that?