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/88498/sa39474.txt
Source: https://packetstormsecurity.com/files/88498/Secunia-Security-Advisory-39474.html