__________________________________________________________ The U.S. Department of Energy Computer Incident Advisory Capability ___ __ __ _ ___ / | /_\ / \___ __|__ / \ \___ __________________________________________________________ INFORMATION BULLETIN Trend Micro Antivirus UPX Parsing Vulnerability [Trend Micro Solution ID: 1034289] February 8, 2007 20:00 GMT Number R-125 ______________________________________________________________________________ PROBLEM: There is a vulnerability in Trend Micros Scan Engine. PLATFORM: Scan Engine - 8.300 and 8.000 DAMAGE: A remote hacker could run arbitrary code when a malformed UPX file is scanned. SOLUTION: Upgrade to the appropriate version. ______________________________________________________________________________ VULNERABILITY The risk is MEDIUM. A remote hacker could run arbitrary code ASSESSMENT: when a malformed UPX file is scanned. ______________________________________________________________________________ LINKS: CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-125.shtml ORIGINAL BULLETIN: http://esupport.trendmicro.com/support/viewxml.do?ContentID =EN-1034289 ______________________________________________________________________________ [***** Start Trend Micro Solution ID: 1034289 *****] [Vulnerability Confirmation] Antivirus UPX Parsing Kernel Buffer Overflow Vulnerability Solution ID: 1034289 A recent system upgrade added a ‘1’ or ‘2’ to old solution IDs. You find these solutions by removing or retaining the extra '1' or '2'. Product: Scan Engine - 8.300, Scan Engine - 8.000 Operating System: N/A Published: 2/6/07 5:18 AM Problem: Trend Micro has become aware of a vulnerability in its Scan Engine, wherein a corrupted UPX file can cause a buffer overflow and lead to either of the following: • Blue screen of death (BSOD) • Execution of arbitrary code that allows an attacker to take control of the system It affects all Trend Micro products and versions using the Scan Engine and Pattern File technology. A complete list of products is found in: • http://www.trendmicro.com/download/engine.asp • http://www.trendmicro.com/download/pattern.asp Solution: To address the vulnerability, update to virus pattern file 4.245.00 or higher. This provides the following fixes: • Update of the UPX Parsing algorithm • Generic detection for malformed UPX files Enhancements will also be applied on the Scan Engine and the fix will be included in the upcoming release of version 8.5. If you encounter issues downloading the pattern file from the ActiveUpdate server, refer to the following manual update solutions: Client / Server / Messaging Security for SMB Manually updating the Pattern File on the Security Server Manually updating the Pattern File on the Client / Server Security Agent Manually updating the Pattern File on the Messaging Security Agent Client / Server Security for SMB Manually updating the Pattern File on the Security Server Manually updating the Pattern File on the Client / Server Security Agent Control Manager InterScan Messaging Security Suite InterScan VirusWall InterScan VirusWall for SMB (version 5.0) InterScan Web Security Suite OfficeScan ScanMail for Lotus Domino ScanMail for Microsoft Exchange ServerProtect for Linux ServerProtect for Microsoft Windows ServerProtect for Novell NetWare Trend Micro PC-cillin Internet Security 2005 Trend Micro PC-cillin Internet Security 2006 Trend Micro PC-cillin Internet Security 2007 If you suspect that you may have been affected by this vulnerability, contact your Technical Account Manager or Trend Micro Technical Support Services in your region. This vulnerability was reported to Trend Micro by the iDefense Vulnerability Labs. [***** End Trend Micro Solution ID: 1034289 *****] _______________________________________________________________________________ CIAC wishes to acknowledge the contributions of Trend Micro 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. CIAC is also a founding member of FIRST, the Forum of Incident Response and Security Teams, a global organization established to foster cooperation and coordination among computer security teams worldwide. CIAC services are available to DOE, DOE contractors, and the NIH. CIAC can be contacted at: Voice: +1 925-422-8193 (7x24) FAX: +1 925-423-8002 STU-III: +1 925-423-2604 E-mail: ciac@ciac.org Previous CIAC notices, anti-virus software, and other information are available from the CIAC Computer Security Archive. World Wide Web: http://www.ciac.org/ Anonymous FTP: ftp.ciac.org PLEASE NOTE: Many users outside of the DOE, ESnet, and NIH computing communities receive CIAC bulletins. If you are not part of these communities, please contact your agency's response team to report incidents. Your agency's team will coordinate with CIAC. The Forum of Incident Response and Security Teams (FIRST) is a world-wide organization. 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. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or the University of California, and shall not be used for advertising or product endorsement purposes. 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