Secunia Security Advisory – Ubuntu has issued an update for postgresql. This fixes some vulnerabilities, 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/51310/sa22584.txt
Source: https://packetstormsecurity.com/files/51310/Secunia-Security-Advisory-22584.html