USN-932-1: KDM vulnerability

19 April 2010

kdebase-workspace vulnerability

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

  • Ubuntu 9.10
  • Ubuntu 9.04
  • Ubuntu 8.10

Software Description

  • kdebase-workspace


Sebastian Krahmer discovered a race condition in the KDE Display Manager (KDM). A local attacker could exploit this to change the permissions on arbitrary files, thus allowing privilege escalation.

Update instructions

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

Ubuntu 9.10
kdm - 4:4.3.2-0ubuntu7.2
Ubuntu 9.04
kdm - 4:4.2.2-0ubuntu2.1
Ubuntu 8.10
kdm - 4:4.1.4-0ubuntu1~intrepid3.2

To update your system, please follow these instructions:

After a standard system upgrade you need to reboot your computer to effect the necessary changes.