Ubuntu Security Notice 625-1 – A massive slew of Linux kernel related vulnerabilities have been addressed for the linux-source-2.6.15/20/22 packages.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/68239/USN-625-1.txt
Source: https://packetstormsecurity.com/files/68239/Ubuntu-Security-Notice-625-1.html