SSH broken with 'Corrupted MAC on input' in last QUANTAL upgrade

[Guy Van Sanden]

After the last updat on quantal yesterday, I'm getting terminated SSH connections with
Corrupted MAC on input.
Disconnecting: Packet corrupt

This happens on both Ubuntu as RHEL servers that worked fine before. It doesn't matter on which network (or WIFI) I am.
My other laptop with 12.04 works fine.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: openssh-client 1:6.0p1-2ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-5.5-generic 3.5.0-rc7
Uname: Linux 3.5.0-5-generic x86_64
ApportVersion: 2.4-0ubuntu3
Architecture: amd64
Date: Thu Jul 19 09:29:37 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110824)
RelatedPackageVersions:
 ssh-askpass N/A
 libpam-ssh N/A
 keychain 2.7.1-1
 ssh-askpass-gnome 1:6.0p1-2ubuntu1
SSHClientVersion: OpenSSH_6.0p1 Debian-2ubuntu1, OpenSSL 1.0.1c 10 May 2012
SourcePackage: openssh
UpgradeStatus: Upgraded to quantal on 2012-07-09 (9 days ago)

[James Page (james-page)]

Hi Guy

Thanks for taking the time to report this bug in Ubuntu

I've not been able to reproduce your issue (and I do access quite a wide range of servers/types).

Please could you run ssh with verbose logging (-vvvv) and attach the output to this bug report.

I guess its possible its not openssh but something else causing this issue - we will see.

Marking 'Incomplete' pending your response - please set back to 'New' once the information requested has been provided.

Thanks.

[Guy Van Sanden (gvs)]

I think this is related to the usb wifi dongle I bought... will test some more now that I reinstalled precise

[Clint Byrum (clint-fewbar)]

Indeed Guy, this is likely ssh doing its job and warning you of corrupted packets.

I'm going to close the report as Invalid. If you have further info to suggest that this is still a bug and not an environmental problem, then please feel free to change it back to 'New' or open a new bug.