Buffer overflow in Winamp 5.03a, 5.09 and 5.091, and other versions before 5.094, allows remote attackers to execute arbitrary code via an MP3 file with a long ID3v2 tag such as (1) ARTIST or (2) TITLE.
http://www.winamp.com/player/version_history.php
http://www.vupen.com/english/advisories/2005/1106