Secunia Security Advisory – Gentoo has issued an update for htmldoc. This fixes a vulnerability, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81309/sa36651.txt
Source: https://packetstormsecurity.com/files/81309/Secunia-Security-Advisory-36651.html

