1. Kernel Vulnerability in Ubuntu 8.04 LTS, 7.10, 7.04 and 6.06 LTS. Upgrade Now!

The flaw could lead to loss of privacy and DoS attacks!

http://news.softpedia.com/news/Kernel-Vulnerability-in-Ubuntu-8-04-LTS-7-10-7-04-and-6-06-LTS-Upgrade-Now-92423.shtml

2.More details in (1) by Arsgeek (26 Aug. 08) at http://www.arsgeek.com/2008/08/26/ubuntu-security-notice-kernel-vulnerabilities-found-in-all-supported-releases/