Secunia Security Advisory – Ubuntu has issued an update for pulseaudio. This fixes a security issue, which can be exploited by malicious, local users to perform certain actions with escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/63201/sa28738.txt
Source: https://packetstormsecurity.com/files/63201/Secunia-Security-Advisory-28738.html