Ubuntu Update for Linux kernel vulnerabilities USN-1113-1

Please Install the Updated Packages.

It was discovered that the Postfix package incorrectly granted write access on the PID directory to the postfix user. A local attacker could use this flaw to possibly conduct a symlink attack and overwrite arbitrary files. This issue only affected Ubuntu 6.06 LTS and 8.04 LTS. (CVE-2009-2939) Wietse Venema discovered that Postfix incorrectly handled cleartext commands after TLS is in place. A remote attacker could exploit this to inject cleartext commands into TLS sessions, and possibly obtain confidential information such as passwords. (CVE-2011-0411)

postfix on Ubuntu 10.10 , Ubuntu 10.04 LTS , Ubuntu 9.10 , Ubuntu 8.04 LTS , Ubuntu 6.06 LTS