Secunia Security Advisory – Gentoo has issued an update for libvorbis. This fixes some vulnerabilities, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise an application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81046/sa36610.txt
Source: https://packetstormsecurity.com/files/81046/Secunia-Security-Advisory-36610.html