Ubuntu Update for exim4 USN-1618-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1618-1
Solution
Please Install the Updated Packages.
Insight
It was discovered that Exim incorrectly handled DKIM DNS decoding. This flaw could allow a remote attacker to execute arbitrary code.
Affected
exim4 on Ubuntu 12.04 LTS , Ubuntu 11.10 , Ubuntu 11.04 , Ubuntu 10.04 LTS
References