Secunia Security Advisory – Debian has issued an update for php-mail. This fixes two vulnerabilities, which can be exploited by malicious people to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/82884/sa37458.txt
Source: https://packetstormsecurity.com/files/82884/Secunia-Security-Advisory-37458.html