TippingPoint Zero Day Initiative

Apple Webkit SVG RadialGradiant Run-in Remote Code Execution Vulnerability

ZDI-10-101: June 8th, 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 9848. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Apple Safari's Webkit. 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 the application's support of the run-in display property. On insertion of a specific element with the "run-in" display property, the application will create a duplicate reference of a child element used to support that attribute. Upon destruction of the parent container, the application will then call the destructor for this child element multiple times. Successful exploitation 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

    2010-05-03 - Vulnerability reported to vendor
    2010-06-08 - Coordinated public release of advisory


This vulnerability was discovered by:
    wushi of team509