Secunia Security Advisory – Edi Strosar has reported a security issue in X-Spam for SMTP Servers, 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/69737/sa31765.txt
Source: https://packetstormsecurity.com/files/69737/Secunia-Security-Advisory-31765.html