TippingPoint Zero Day Initiative

Apple QuickTime PICT Unspecified Tag Heap Overflow Vulnerability

ZDI-09-021: May 13th, 2009


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8048. 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 or open a malicious file.

The specific flaw exists when the application parses a malformed .PICT image. While decoding a tag 0x77 in the image, the application misuses a 16-bit length when allocating tag data. When copying tag data into this buffer, a heap overflow occurs. This can lead to code execution under the context of the current user.

Vendor Response

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

Disclosure Timeline

    2009-04-15 - Vulnerability reported to vendor
    2009-05-13 - Coordinated public release of advisory


This vulnerability was discovered by:
    Damian Put, Sebastian Apelt