TippingPoint Zero Day Initiative

Apple QuickTime Player MP4A Uninitialized Pointer Remote Code Execution Vulnerability

ZDI-12-130: August 3rd, 2012


CVSS Score

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple QuickTime Player. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within how the application parses a header containing codec-specific data. When handling an error case, the application will forget to initialize a pointer which will later be used in a memory operation. This can lead to code execution under the context of the application.

Vendor Response

Apple has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2011-10-21 - Vulnerability reported to vendor
    2012-08-03 - Coordinated public release of advisory


This vulnerability was discovered by:
    Luigi Auriemma
    pa_kt / twitter.com/pa_kt / e1c14ba6