Secunia Security Advisory – Debian has issued an update for nagios2 and nagios3. This fixes a vulnerability, which can be exploited by malicious users to potentially compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78963/sa35692.txt
Source: https://packetstormsecurity.com/files/78963/Secunia-Security-Advisory-35692.html