Symantec disclosed that Apple QuickTime contains a remote buffer overflow vulnerability that could be exploited by the hackers.

Symantec said successful exploits of the vulnerability will compromise the application and possibly the underlying computer. Failed attacks will likely cause denial-of-service conditions.

A solution is to block the rtsp:// protocol, disable the QuickTime ActiveX controls in Internet Explorer and QuickTime plug-ins in Mozilla based browsers or disable file association for QuickTime files.