This bug was fixed in the package openssh - 1:7.7p1-4ubuntu0.1 --------------- openssh (1:7.7p1-4ubuntu0.1) cosmic; urgency=medium
* debian/patches/fix-broken-tunnel-forwarding.patch: Fix tunnel forwarding broken in 7.7p1. Thanks to Damien Miller <d...@mindrot.org>. (LP: #1801128) -- Karl Stenerud <karl.stene...@canonical.com> Wed, 07 Nov 2018 14:52:49 +0100 ** Changed in: openssh (Ubuntu Cosmic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/1801128 Title: OpenSSH 7.7 -w tunnel bug Status in openssh package in Ubuntu: Fix Released Status in openssh source package in Cosmic: Fix Released 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/PasswordAuthentication no/PasswordAuthentication yes/g' /etc/ssh/sshd_config && \ 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://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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1801128/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp