Ubuntu Update for unity-firefox-extension USN-1639-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1639-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that unity-firefox-extension incorrectly handled certain callbacks. A remote attacker could use this issue to cause unity-firefox-extension to crash, resulting in a denial of service, or possibly execute arbitrary code.
Affected
unity-firefox-extension on Ubuntu 12.10
References