TippingPoint Zero Day Initiative
 

Apple Quicktime Picture Viewer FLC Delta-Encoded Frame Decompression Vulnerability

ZDI-09-025: June 2nd, 2009

CVE ID

Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6570. For further product information on the TippingPoint IPS:

Vulnerability Details

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

The specific flaw exists during decompression of a delta-encoded chunk. The algorithm to decompress the frame trusts a line specifier when calculating where to write decompressed data. This results in a relative write using attacker supplied values which can lead to remove 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

    2008-10-28 - Vulnerability reported to vendor
    2009-06-02 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous