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Category:   Application (Instant Messaging/IRC/Chat)  >   Trillian Vendors:   Cerulean Studios
Trillian Buffer Overflow in Creating Tooltips Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1021335
SecurityTracker URL:  http://securitytracker.com/id/1021335
CVE Reference:   CVE-2008-5401   (Links to External Site)
Updated:  Dec 23 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 cause arbitrary code to be executed on the target user's system.

A remote user can send a specially crafted image via AIM. When the target user creates a tooltip for the image, a stack overflow may occur and arbitrary code may be executed on the target user's 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 cause arbitrary code to be executed on the target user's 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

Message History:   None.


 Source Message Contents

Subject:  [Full-disclosure] ZDI-08-077: Trillian AIM IMG Tag Parsing Stack

ZDI-08-077: Trillian AIM IMG Tag Parsing Stack Overflow Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-08-077
December 4, 2008

-- Affected Vendors:
Cerulean Studios

-- Affected Products:
Cerulean Studios Trillian

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

The specific flaw exists within the tooltip processing code for
Trillian. When creating a tooltip for an image, the application
generates an XML tag including a property containing the filename. This
data is then copied directly into a stack-based buffer without any
length verifications which can eventually lead to code execution with
the privileges of the client.

-- Vendor Response:
Cerulean Studios 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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