Secunia Security Advisory – Ubuntu has acknowledged a security issue in hplip, which can be exploited by malicious, local users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/73882/sa33539.txt
Source: https://packetstormsecurity.com/files/73882/Secunia-Security-Advisory-33539.html