Ubuntu Update for Linux kernel vulnerabilities USN-1666-1
Please Install the Updated Packages.
It was discovered that Aptdaemon incorrectly validated PPA GPG keys when importing from a keyserver. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to install altered package repository GPG keys.
aptdaemon on Ubuntu 12.04 LTS , Ubuntu 11.10
Updated on 2015-03-25