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Category:   Application (Instant Messaging/IRC/Chat)  >   Trillian Vendors:   Cerulean Studios
Trillian Bug in Processing IMG SRC ID Tag Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1021334
SecurityTracker URL:  http://securitytracker.com/id/1021334
CVE Reference:   CVE-2008-5402   (Links to External Site)
Updated:  Dec 10 2008
Original Entry Date:  Dec 5 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 3.1.12.0
Description:   A vulnerability was reported in Trillian. A remote user can execute arbitrary code on the target user's system.

A remote user can send a specially crafted IMG SRC ID XML tag to trigger a memory corruption error and execute arbitrary code on the target system. The code will run with the privileges of the target user.

The vendor was notified on November 10, 2008.

Damian Put reported this vulnerability via TippingPoint.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (3.1.12.0).

The vendor's advisory is available at:

http://blog.ceruleanstudios.com/?p=404

Vendor URL:  www.ceruleanstudios.com/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Windows (Any)

Message History:   None.


 Source Message Contents

Subject:  [Full-disclosure] ZDI-08-078: Trillian IMG SRC ID Memory Corruption

ZDI-08-078: Trillian IMG SRC ID Memory Corruption Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-078
December 4, 2008

-- Affected Vendors:
Cerulean Studios

-- Affected Products:
Cerulean Studios Trillian

-- Vulnerability Details:
This vulnerability allows remote attackers to potentially execute
arbitrary code on vulnerable installations of Cerulean Studios Trillian.
Authentication is not required to exploit this vulnerability.

The specific flaw exists within the XML processing code for Trillian.
When parsing specially formulated xml, the application will corrupt an
internal data structure. Whilst deallocating this data structure, the
application can be tricked into freeing a single allocated chunk
multiple times, which can potentially lead to code execution.

-- Vendor Response:
Trillian has issued an update to correct this vulnerability. More
details can be found at:

http://blog.ceruleanstudios.com/?p=404

-- Disclosure Timeline:
2008-11-10 - Vulnerability reported to vendor
2008-12-04 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Damian Put

-- About the Zero Day Initiative (ZDI):
Established by TippingPoint, The Zero Day Initiative (ZDI) represents 
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
its intrusion prevention technology. Explicit details regarding the
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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