Format string vulnerability in Skulltag 0.96f and earlier allows remote attackers to cause a denial of service via the version string.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25988
http://www.vupen.com/english/advisories/2006/1479
http://www.securityfocus.com/bid/17659
http://www.securityfocus.com/archive/1/431872/100/0/threaded