Ubuntu Update for libpng vulnerability USN-472-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-472-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that libpng did not correctly handle corrupted CRC in grayscale PNG images. By tricking a user into opening a specially crafted PNG, a remote attacker could cause the application using libpng to crash, resulting in a denial of service.
Affected
libpng vulnerability on Ubuntu 6.06 LTS , Ubuntu 6.10 , Ubuntu 7.04
References