Secunia Security Advisory – Ubuntu has issued an update for postgresql-8.1 and postgresql-8.3. 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/76491/sa34620.txt
Source: https://packetstormsecurity.com/files/76491/Secunia-Security-Advisory-34620.html