Ubuntu Update for libxfont USN-1191-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1191-1
Solution
Please Install the Updated Packages.
Insight
Tomas Hoger discovered that libXfont incorrectly handled certain malformed compressed fonts. An attacker could use a specially crafted font file to cause libXfont to crash, or possibly execute arbitrary code in order to gain privileges.
Affected
libxfont on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS