Comment 0 for bug 1801128

Just upgraded to cosmic, which picks up OpenSSH 7.7.

OpenSSH 7.7 has known bug https://bugzilla.mindrot.org/show_bug.cgi?id=2855 which is fixed in OpenSSH 7.8. It's a regression that completely breaks -w tunneling.

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
ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
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-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions:
 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)