Ubuntu Update for gnome-screensaver vulnerability USN-898-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-898-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that gnome-screensaver did not correctly handle monitor hotplugging. An attacker with physical access could cause gnome-screensaver to crash and gain access to the locked session.
Affected
gnome-screensaver vulnerability on Ubuntu 9.10