NOD32 Antivirus DOC parsing Arbitrary Code Execution Advisory

2006.12.29
Risk: High
Local: Yes
Remote: Yes
CWE: N/A

n.runs AG http://www.nruns.com/ security at nruns.com n.runs-SA-2006.004 20-Dec-2006 ________________________________________________________________________ Vendor: ESET, http://eset.com Affected Products: ESET NOD32 Antivirus Vulnerability: Arbitrary Code Execution (remote) Risk: HIGH ________________________________________________________________________ Vendor communication: 2006/08/24 initial notification of ESET 2006/08/28 ESET Response 2006/08/29 PGP keys exchange 2006/08/29 PoC files sent to ESET 2006/09/06 ESET initial feedback. 2006/09/08 ESET confirmed the bug and fixed 2006/09/08 ESET made available the updates ________________________________________________________________________ Overview: Founded in 1992, ESET is a global provider of security software for enterprises and consumers. ESET's award-winning, antivirus software system, NOD32, provides real-time protection from known and unknown viruses, spyware, rootkits and other malware. NOD32 offers the smallest, fastest and most advanced protection available, with more Virus Bulletin 100% Awards than any other antivirus product. ESET was named to Deloitte's Technology Fast 500 five years running, and has an extensive partner network, including corporations like Canon, Dell and Microsoft. ESET has offices in Bratislava, SK; Bristol, U.K.; Buenos Aires, AR; Prague, CZ; San Diego, USA; and is represented worldwide in more than 100 countries. The broad product platform protects Windows, Linux, Novell and MS DOS machines. Description: Multiple vulnerabilities have been found in the file parsing engine. In detail, the following flaw was determined: - Divide by Zero in .CHM file parsing. - Heap Overflow through Integer Overflow in .DOC File Parsing The .DOC problem can lead to remote arbitrary code execution if an attacker carefully crafts a file that exploits the aforementioned vulnerabilities. The vulnerabilities are present in NOD32 Antivirus software versions prior to the update v.1.1743. Solution: The vulnerabilities were reported on Aug 24 and an update has been issued on Sep 08 to solve these vulnerabilities through the regular update mechanism. ________________________________________________________________________ Credit: Bugs found by Sergio Alvarez of n.runs AG. ________________________________________________________________________ References: http://eset.com/support/updates.php?pageno=61 (NOD32 - v.1.1743) ________________________________________________________________________ The information provided is released by n.runs "as is" without warranty of any kind. n.runs except all warranties, either express or implied, expect for the warranties of merchantability. In no event shall n.runs be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if n.runs has been advised of the possibility of such damages. Distribution or Reproduction of the information is provided that the advisory is not modified in any way. Copyright 2006 n.runs. All rights reserved. Terms of use.


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