USN-403-1: X.org vulnerabilities

9 January 2007

xorg, xorg-server vulnerabilities

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

  • Ubuntu 6.10
  • Ubuntu 6.06 LTS
  • Ubuntu 5.10

Software Description

Details

The DBE and Render extensions in X.org were vulnerable to integer overflows, which could lead to memory overwrites. An authenticated user could make a specially crafted request and execute arbitrary code with root privileges.

Update instructions

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

Ubuntu 6.10
xserver-xorg-core - 1:1.1.1-0ubuntu12.1
Ubuntu 6.06 LTS
xserver-xorg-core - 1:1.0.2-0ubuntu10.5
Ubuntu 5.10
xserver-xorg-core - 6.8.2-77.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References