All Windows and Mac users who have Quick Time installed should update to the latest versions of this software:

Apple Quick Time Advisory Information
http://www.incidents.org/diary.php?storyid=1033
http://secunia.com/advisories/18370/
http://www.frsirt.com/english/advisories/2006/0128

Apple Quick Time Advisory Downloads

Mac OS X (version 10.3.9 or later):
http://www.apple.com/support/downloads/quicktime704.html

Windows 2000/XP:
http://www.apple.com/quicktime/download/win.html

DESCRIPTION: Some vulnerabilities have been reported in Apple QuickTime, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially to compromise a user's system