Ubuntu Update for sudo vulnerability USN-1046-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1046-1
Solution
Please Install the Updated Packages.
Insight
Alexander Kurtz discovered that sudo would not prompt for a password when a group was specified in the Runas_Spec. A local attacker could exploit this to execute arbitrary code as the specified group if sudo was configured to allow the attacker to use a program as this group. The group Runas_Spec is not used in the default installation of Ubuntu.
Affected
sudo vulnerability on Ubuntu 9.10 , Ubuntu 10.04 LTS , Ubuntu 10.10