bugtraq - ZDI-08-030: Trillian Multiple Protocol XML Parsing Memory Corruption Vulnerability

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Message-ID: <OF7B29170D.128FD051-ON88257450.007CC25A-86257450.007D1BA7@3com.com>
Date: Wed, 21 May 2008 17:46:31 -0500
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Cc: zdi-disclosures@...m.com
Subject: ZDI-08-030: Trillian Multiple Protocol XML Parsing Memory Corruption
 Vulnerability

ZDI-08-030: Trillian Multiple Protocol XML Parsing Memory Corruption 
Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-030
May 21, 2008

-- Affected Vendors:
Cerulean Studios

-- Affected Products:
Cerulean Studios Trillian

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 6126. 
For further product information on the TippingPoint IPS, visit:

    http://www.tippingpoint.com

-- 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:
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

-- Credit:
This vulnerability was discovered by:
    * tw33k and n8

-- About the Zero Day Initiative (ZDI):
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a best-of-breed model for rewarding security researchers for responsibly
disclosing discovered vulnerabilities.

Researchers interested in getting paid for their security research
through the ZDI can find more information and sign-up at:

    http://www.zerodayinitiative.com

The ZDI is unique in how the acquired vulnerability information is
used. TippingPoint does not re-sell the vulnerability details or any
exploit code. Instead, upon notifying the affected product vendor,
TippingPoint provides its customers with zero day protection through
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specifics of the vulnerability are not exposed to any parties until
an official vendor patch is publicly available. Furthermore, with the
altruistic aim of helping to secure a broader user base, TippingPoint
provides this vulnerability information confidentially to security
vendors (including competitors) who have a vulnerability protection or
mitigation product.

Our vulnerability disclosure policy is available online at:

    http://www.zerodayinitiative.com/advisories/disclosure_policy/

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