Winamp 3.0 allows remote attackers to cause a denial of service (crash) via .b4s file with a file: argument to the Playstring parameter that contains MS-DOS device names such as aux.
NullSoft Winamp 5.02 allows remote attackers to cause a denial of service (crash) by creating a file with a long filename, which causes the victim's player to crash when the file is opened from the command line.