A set of flaws in the QuicktTime libraries has been patched by Apple, with a fix available for all systems. The flaws, which went largely unnoticed at first, affect QuickTime software running on Windows 2000, Windows XP and Mac OS X 10.3.9, and stems from the QuickTime libraries that the QuickTime Player and iTunes, among other software, use. The flaw could result in a system being compromised with arbitrary code execution possible, though there are not reports yet of people being compromised in this manner. This is one of those rare quirks that, even if largely unnoticed, is still unique because it is cross-platform. An updated version of QuickTime is available from Apple.