Secunia Security Advisory – Debian has issued an update for psi. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/75773/sa34301.txt
Source: https://packetstormsecurity.com/files/75773/Secunia-Security-Advisory-34301.html