Ubuntu Security Notice USN-514-1
18th September, 2007
xorg-server vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 6.06 LTS
Software description
- xorg-server
Details
Aaron Plattner discovered that the Composite extension did not correctly
calculate the size of buffers when copying between different bit depths.
An authenticated user could exploit this to execute arbitrary code with
root privileges.
Update instructions
The problem can be corrected by updating your system to the following package version:
- Ubuntu 6.06 LTS:
- xserver-xorg-core 1:1.0.2-0ubuntu10.7
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart your session to effect
the necessary changes.