TippingPoint Zero Day Initiative
 

Apple QuickTime MJPEG Sample Dimensions Remote Code Execution Vulnerability

ZDI-10-037: April 2nd, 2010

CVE ID

CVSS Score

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8413. 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 during the parsing of compressed mjpeg data from a malformed .mov file. The application will utilize the width and height fields in the file for calculating the size of a heap buffer. When copying into this buffer, the application will use a different field in the file to determine when to stop copying. If the first calculated length is smaller than the one used for decompression, a memory corruption will occur which can result in 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

    2009-07-14 - Vulnerability reported to vendor
    2010-04-02 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Damian Put
    Anonymous