TippingPoint Zero Day Initiative

Apple QuickTime PICT directBitsRect Pack3 Remote Code Execution Vulnerability

ZDI-10-262: December 7th, 2010


CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 10661. 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 within how the application parses directBitsRect records within a .pict file. When decompressing data within this structure, the application will allocate space for the target buffer using fields described within the file and then use a different length to decompress the total data from the file. 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

    2010-11-05 - Vulnerability reported to vendor
    2010-12-07 - Coordinated public release of advisory


This vulnerability was discovered by:
    Moritz Jodeit of n.runs AG