mailmgr version 1.2.3 is vulnerable to symlink attacks. If the utility is run as root, any file on the system can be overwritten.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/32680/mailmgr.txt
Source: https://packetstormsecurity.com/files/32680/mailmgr.txt.html