Ubuntu Update for qt4-x11 vulnerabilities USN-1101-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1101-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that several invalid HTTPS certificates were issued and revoked. An attacker could exploit these to perform a man in the middle attack to view sensitive information or alter encrypted communications. These were placed on the certificate blacklist to prevent their misuse.
Affected
qt4-x11 vulnerabilities on Ubuntu 8.04 LTS , Ubuntu 9.10 , Ubuntu 10.04 LTS , Ubuntu 10.10