Integer overflow in IN_MOD.DLL (aka the Module Decoder Plug-in) in Winamp before 5.57 might allow remote attackers to execute arbitrary code via an Oktalyzer file that triggers a heap-based buffer overflow.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15715
http://www.vupen.com/english/advisories/2009/3575
http://www.securityfocus.com/bid/37374
http://www.securityfocus.com/archive/1/508524/100/0/threaded
http://secunia.com/secunia_research/2009-57/