openssh-server abruptly terminates multichannel sessions

[Andy Piper]

The bug fixed in https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1334916 (1:6.9p1-3) was never released for Ubuntu 14.04. The symptoms in openssh-server 1:6.6p1-2ubuntu2.8 are exactly the same as reported in that bug.

Unfortunately, moving from 14.04 to a more recent release like 16.04 isn't an option for us. Neither is reverting to the previous release for 14.04, due to the security vulns that were fixed in the latest release.

I'm happy to supply more information if required.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: openssh-server 1:6.6p1-2ubuntu2.8
ProcVersionSignature: Ubuntu 4.4.0-62.83~14.04.1-generic 4.4.40
Uname: Linux 4.4.0-62-generic x86_64
NonfreeKernelModules: talpa_vfshook talpa_pedconnector talpa_pedevice talpa_vcdevice talpa_core talpa_linux talpa_syscallhook
ApportVersion: 2.14.1-0ubuntu3.23
Architecture: amd64
CurrentDesktop: MATE
Date: Tue Feb 7 13:35:30 2017
InstallationDate: Installed on 2015-03-13 (696 days ago)
InstallationMedia: Ubuntu MATE 14.04.1 "Trusty Tahr" - final amd64 (20141111)
SourcePackage: openssh
UpgradeStatus: No upgrade log present (probably fresh install)

[Andy Piper (andy-piper-gmail)]

BTW, the NonfreeKernelModules belong to the anti-virus product installed on my machine. This problem has also been reproduced on other machines that don't have this AV installed

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nish Aravamudan (nacc)]

Hello and thank you for filing this bug report. I've opened a task in the other bug for Trusty and that is the best place to follow up on it.