Secunia Security Advisory – Ubuntu has issued an update for postgresql. This fixes a security issue, which can be exploited by malicious users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/56267/sa25058.txt
Source: https://packetstormsecurity.com/files/56267/Secunia-Security-Advisory-25058.html