Ubuntu Update for xorg-server vulnerability USN-514-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-514-1
Solution
Please Install the Updated Packages.
Insight
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.
Affected
xorg-server vulnerability on Ubuntu 6.06 LTS
References