__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Cerulean Studios Trillian Instant Messenger Vulnerability [US-CERT Vulnerability Note VU#187033] June 26, 2007 19:00 GMT Number R-284 ______________________________________________________________________________ PROBLEM: A vulnerability in Cerulean Studios Trillian Instant Messenger client may lead to execution of arbitrary code. PLATFORM: Cerulean Studios DAMAGE: May be able to run arbitrary code. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote, authenticated user may be able to ASSESSMENT: run arbitrary code with the privileges of the user who recalls the message. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-284.shtml ORIGINAL BULLETIN: http://www.kb.cert.org/vuls/id/187033 CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name= ______________________________________________________________________________ [***** Start US-CERT Vulnerability Note VU#187033 *****] Vulnerability Note VU#187033 Cerulean Studios Trillian Instant Messenger fails to properly handle "UTF-8" sequences Overview A vulnerability in Cerulean Studios Trillian Instant Messenger client may lead to execution of arbitrary code. I. Description Cerulean Studios Trillian Instant Messenger client fails to properly handle specially crafted UTF-8 text. A heap overflow may occur when Trillian receives a messages with malformed UTF-8 strings. II. Impact A remote, authenticated attacker may be able to execute arbitrary code with the privileges of the user or cause a denial-of-service condition by sending the client a message. III. Solution Update Cerulean Studios has released an update to address this issue. See the Cerulean Studios Blog for more information. Systems Affected Vendor Status Date Updated Cerulean Studios Vulnerable 20-Jun-2007 References http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=545 http://secunia.com/advisories/25736/ http://blog.ceruleanstudios.com/?p=150 Credit This vulnerability was reported in iDefense Public Advisory 6.18.07. iDefense credits www.BlurredLogic.com with reporting this issue. This document was written by Chris Taschner. Other Information Date Public 06/18/2007 Date First Published 06/20/2007 03:54:35 PM Date Last Updated 06/20/2007 CERT Advisory CVE Name Metric 6.08 Document Revision 9 [***** End US-CERT Vulnerability Note VU#187033 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of US-CERT for the information contained in this bulletin. _______________________________________________________________________________ CIAC, the Computer Incident Advisory Capability, is the computer security incident response team for the U.S. Department of Energy (DOE) and the emergency backup response team for the National Institutes of Health (NIH). CIAC is located at the Lawrence Livermore National Laboratory in Livermore, California. 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A list of FIRST member organizations and their constituencies can be obtained via WWW at http://www.first.org/. This document was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor the University of California nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation or favoring by the United States Government or the University of California. 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