TippingPoint Zero Day Initiative

Apple QuickTime MP4A Atom Parsing Heap Corruption Vulnerability

ZDI-08-016: April 3rd, 2008


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 3377. For further product information on the TippingPoint IPS:

Vulnerability Details

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

The specific flaw exists in the parsing of the QuickTime Channel Compositor atom. When the movie file contains a malformed 'chan' atom, a heap corruption occurs resulting in the execution of arbitrary code.

Vendor Response

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

Disclosure Timeline

    2008-02-07 - Vulnerability reported to vendor
    2008-04-03 - Coordinated public release of advisory


This vulnerability was discovered by: