Secunia Security Advisory – Ubuntu has issued an update for nagios-common. This fixes a vulnerability, which can be exploited by malicious users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/73255/sa33207.txt
Source: https://packetstormsecurity.com/files/73255/Secunia-Security-Advisory-33207.html