Jason Boettcher Liero Xtreme 0.62b and earlier allow remote attackers to cause a denial of service (application crash or hang) via a long argument to the connect command.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25185
http://www.vupen.com/english/advisories/2006/0849
http://www.securityfocus.com/bid/16992
http://www.securityfocus.com/archive/1/426864/100/0/threaded