pam_ssh does not add key to agent in (K)Ubuntu 13.10

[Peter Mühlenpfordt]

After upgrading from Kubuntu 13.04 to 13.10 pam_ssh does not unlock ssh key at login any more.
The problem also exists on a fresh installation of Kubuntu 13.10 as well as Ubuntu 13.10.

Steps to reproduce:
Create ssh keypair (ssh-keygen -t dsa) with the same password as login password
Install libpam-ssh
Until 13.04 after next login the key is added to a running ssh-agent (listed with 'ssh-add -l'), since 13.10 you have to enter the keyfile password any time you want to login to remote machines.

OS Release: "Description: Ubuntu 13.10 / Release: 13.10"
libpam-ssh 1.98-2 (i386)

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: libpam-ssh 1.98-2
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic i686
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
Date: Fri Nov 1 17:06:09 2013
InstallationDate: Installed on 2013-11-01 (0 days ago)
InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release i386 (20131016.1)
MarkForUpload: True
SourcePackage: libpam-ssh
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[Ionică Bizău (bizauionica)]

Asked this after upgrading to 13.10 on askubunut:

http://askubuntu.com/q/362280/148451

Maybe my solution helps someone.

[Peter Mühlenpfordt (muehlenp)]

Sure, we can do this by hand - but that's what pam_ssh should do automatically...

[joh6nn (joh6nn)]

on 12.04 using libpam-ssh_1.92-14, pam is complaining of the following in /var/log/auth.log:

Dec 1 13:32:45 localhost kdm: PAM unable to dlopen(pam_ssh.so): /lib/security/pam_ssh.so: cannot open shared object file: No such file or directory
Dec 1 13:32:45 localhost kdm: PAM adding faulty module: pam_ssh.so

symlinking /usr/lib/pam_ssh.so to /lib/security/pam_ssh.so resolved this error for me, and allowed pam_ssh.so to once again add keys to the ssh-agent

[Peter Mühlenpfordt (muehlenp)]

That's a different (fixed) bug, see here: https://bugs.launchpad.net/ubuntu/+source/libpam-ssh/+bug/848050

[Jonathan Marsaud (zic)]

Any scheduled upgrade for this bug?
Thank you.

[Roberto Tyley (roberto-tyley)]

The importance of this bug should be higher than 'low', surely? It's verging on a security flaw when you have to retype you ssh passphrase every time you perform and ssh/git/scp operation - it's certainly a serious usability failing.

[Daniel Jenkins (jeukel)]

Just had to deal with this bug and resolved using:

https://askubuntu.com/questions/362280/enter-ssh-passphrase-once

Still, 2016 and keeps alive???

[Daniel Jenkins (jeukel)]

Nop. Just until next reboot.

[Tyson Tan (tysontan)]

I always encounter this bug on every Ubuntu released after its discovery. I have to use RSA key to SSH everyday and it annoys me to no end.

Comment 9 helped me to workaround this bug though. That's a start! -_-