Buffer overflow in the vpnclient program for UNIX VPN Client before 3.5.2 allows local users to gain administrative privileges via a long profile name in a connect argument.
http://www.securityfocus.com/bid/5056
http://www.iss.net/security_center/static/9376.php
http://www.cisco.com/warp/public/707/cisco-unix-vpnclient-buffer-overflow-pub.shtml