Secunia Security Advisory – Nico Golde has reported a vulnerability in Op, 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/68264/sa31103.txt
Source: https://packetstormsecurity.com/files/68264/Secunia-Security-Advisory-31103.html