Ubuntu Update for exim4 USN-1135-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1135-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that the Exim daemon did not correctly handle certain DKIM identities. A remote attacker could send specially crafted email to run arbitrary code as the Exim user.
Affected
exim4 on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS