TippingPoint Zero Day Initiative

Trillian Multiple Protocol XML Parsing Memory Corruption Vulnerability

ZDI-08-030: May 21st, 2008


Affected Vendors

Affected Products


TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6126. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Cerulean Studios Trillian Pro. Authentication is not required to exploit this vulnerability.

The specific flaw exists within XML parsing in talk.dll. When processing certain malformed attributes within an 'IMG' tags, it is possible to overwrite past an allocated heap chunk which can eventually lead to code execution under the context of the currently user.

Vendor Response

Cerulean Studios states:

Trillian v3.1.10.0 has been released to address these vulnerabilities and is available at http://www.ceruleanstudios.com/downloads/

Disclosure Timeline

    2008-04-08 - Vulnerability reported to vendor
    2008-05-21 - Coordinated public release of advisory


This vulnerability was discovered by:
    tw33k and n8