Ubuntu Update for postfix USN-1131-1

Summary
Ubuntu Update for Linux kernel vulnerabilities USN-1131-1
Solution
Please Install the Updated Packages.
Insight
Thomas Jarosch discovered that Postfix incorrectly handled authentication mechanisms other than PLAIN and LOGIN when the Cyrus SASL library is used. A remote attacker could use this to cause Postfix to crash, leading to a denial of service, or possibly execute arbitrary code as the postfix user.
Affected
postfix on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS , Ubuntu 8.04 LTS , Ubuntu 6.06 LTS