Ubuntu Update for Firefox and Xulrunner vulnerabilities USN-1091-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1091-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that several invalid HTTPS certificates were issued and revoked. An attacker could use these to perform a man-in-the-middle attack. These were placed on the certificate blacklist to prevent their misuse.
Affected
Firefox and Xulrunner vulnerabilities on Ubuntu 8.04 LTS , Ubuntu 9.10 , Ubuntu 10.04 LTS , Ubuntu 10.10
References