USN-364-1: Xsession vulnerability

Ubuntu Security Notice USN-364-1

16th October, 2006

xinit vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 6.06 LTS
  • Ubuntu 5.10


A race condition existed that would allow other local users to see error
messages generated during another user's X session. This could allow
potentially sensitive information to be leaked.

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 6.06 LTS:
xinit 1.0.1-0ubuntu3.1
Ubuntu 5.10:
xinit 1.0+0.99.1-4ubuntu0.1

To update your system, please follow these instructions:

After a standard system upgrade you need to restart your session to
effect the necessary changes.