Multiple buffer overflows in conf.c for Masqmail 0.1.x before 0.1.17, and 0.2.x before 0.2.15, allow local users to gain privileges via certain entries in the configuration file (-C option).
http://www.securityfocus.com/bid/6164
http://www.iss.net/security_center/static/10605.php
http://www.debian.org/security/2002/dsa-194
http://lists.masqmail.cx/pipermail/masqmail/2002-November/000041.html
http://lists.masqmail.cx/pipermail/masqmail/2002-November/000040.html