Two new vulnerabilities in QuickTime for Windows have recently been discovered, but a patch to address the flaws will not be issued by Apple. Apple has taken the decision to depreciate QuickTime for Windows and has advised all Windows users to uninstall the software to prevent vulnerabilities from being exploited. Apple intends to keep supporting the OSX version.

The latest vulnerabilities in QuickTime for Windows (named ZDI-16-241 and ZDI-16-242) are both heap corruption remote code execution vulnerabilities, both of which allow an attacker to write data outside of an allocated heap buffer. The vulnerabilities could be exploited remotely, although user interaction is required.  In order for an attacker to exploit these vulnerabilities the target would be required to open a malicious file or visit a malicious website.

One of the vulnerabilities affects the moov atom (ZDI-16-241) while the other (ZDI-16-242) involves a flaw with atom processing. Both could allow data to be written outside of an allocated heap buffer by providing an invalid index. This would allow code to be executed in the context of Windows QuickTime player.

Latest Vulnerabilities in QuickTime for Windows Require Uninstallation of the Software

The discovery of the new vulnerabilities in QuickTime for Windows spells the end of the software for Windows users. Apple, Trend Micro, and US-CERT have all advised Windows users to uninstall QuickTime ASAP in order to stay protected.

These two new vulnerabilities are unlikely to be the last to be discovered. Leaving the software installed will place users at risk of attack. Exploits for the new vulnerabilities are not believed to have been developed yet, and no active attacks are understood to have been conducted, but it is only a matter of time before the vulnerabilities are added to exploit kits.

Whenever a software developer takes the decision to stop supporting software it means users must find alternatives. IT departments should ensure that all Windows machines have QuickTime uninstalled as soon as possible.

Apple has decided to stop support for QuickTime for Windows as most media programs no longer use QuickTime to play common formats, while HTML 5 has rendered the browser add-on obsolete.

To uninstall QuickTime for Windows, conduct a search for the uninstaller – search for “uninstall QuickTime” – or remove the program via the Windows Control Panel. Apple advises users to save the registration key if using QuickTime 7 Pro, which can be found in the “Register” tab of the program (Click Edit > Preferences).