Ubuntu Update for libxml2 USN-1656-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1656-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that libxml2 had a heap-based buffer underflow when parsing entities. If a user or automated system were tricked into processing a specially crafted XML document, applications linked against libxml2 could be made to crash or possibly execute arbitrary code.
Affected
libxml2 on Ubuntu 12.10 , Ubuntu 12.04 LTS , Ubuntu 11.10 , Ubuntu 10.04 LTS , Ubuntu 8.04 LTS