Secunia Security Advisory – Ubuntu has issued an update for postgresql. This fixes a security issue, which can be exploited by malicious users to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/89046/sa39566.txt
Source: https://packetstormsecurity.com/files/89046/Secunia-Security-Advisory-39566.html