Multiple stack-based buffer overflows in the (1) ExtractRnick and (2) decrypt_topic_332 functions in FiSH allow remote attackers to execute arbitrary code via long strings.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32892
http://www.vupen.com/english/advisories/2007/0910
http://www.securityfocus.com/bid/22880