In addition to providing full-screen viewing and various iPhone options, the latest version of QuickTime 7.2 includes eight important security fixes. This update affects users of Mac OS X v10.3.9, Mac OS X v10.4.9, as well as users of Windows XP and Windows Vista. The QuickTime update is available from Apple's Software Download for both Mac OS X and Windows users.
QuickTime H.264 movie files This patch affects users of Mac OS X v10.3.9, Mac OS X v10.4.9 or later, Windows Vista, and XP SP2 and addresses the vulnerability in CVE-2007-2295. When viewing a maliciously crafted H.264 movie, an attack may produce an unexpected application termination or arbitrary code execution. Apple credits Tom Ferris of Security-Protocols.com, and Matt Slot of Ambrosia Software, Inc. for reporting this issue.