Stack-based buffer overflow in vpnconf.exe in TheGreenBow IPSec VPN Client 4.51.001, 4.65.003, and possibly other versions, allows user-assisted remote attackers to execute arbitrary code via a long OpenScriptAfterUp parameter in a policy (.tgb) file, related to "phase 2."
https://exchange.xforce.ibmcloud.com/vulnerabilities/55793
http://www.thegreenbow.com/download.php?id=1000150
http://www.senseofsecurity.com.au/advisories/SOS-10-001
http://www.securityfocus.com/bid/40387
http://www.securityfocus.com/archive/1/509091/100/0/threaded