Secunia Security Advisory – Ubuntu has issued an update for sudo. This fixes a security issue, which can be exploited by malicious, local users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75040/sa33737.txt
Source: https://packetstormsecurity.com/files/75040/Secunia-Security-Advisory-33737.html