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-----BEGIN PGP SIGNED MESSAGE-----=0D Hash: SHA1=0D =0D =0D =0D Symantec Vulnerability Research=0D http://www.symantec.com/research=0D Security Advisory=0D =0D =0D Advisory ID : SYMSA-2006-007=0D Advisory Title: Microsoft Office Malformed String Parsing=0D Vulnerability=0D Author : Elia Florio / elia_florio@symantec.com=0D Release Date : 07-11-2006=0D Application : Microsoft Office 2000, Office XP (2002),=0D Office 2003=0D Platform : Windows=0D Severity : Remotely exploitable / User access=0D Vendor status : Duplicated and verified by Microsoft,=0D patch available=0D CVE Number : CVE-2006-1540=0D Reference : http://www.securityfocus.com/bid/18889=0D =0D =0D Overview:=0D =0D There exists an overflow condition in Microsoft Office=0D when a malformed string included in an Office file is=0D parsed by any of the affected Office applications.=0D =0D =0D Details:=0D =0D The problem resides in the code of MSO.DLL, a shared=0D library used by Office applications, so the vulnerability=0D can be exploited using different attack vectors.=0D For example, the vulnerability can be exploited using a=0D malformed Excel 2003 file. By changing the size of the=0D Unicode "Sheet Name" string with an incorrect size, it is=0D possible to generate an integer overflow condition. Excel=0D 2003 will crash while opening the malformed file due to an=0D access violation error with an invalid value of=0D EAX=0xFFFFFFFC.=0D =0D MOV EDX,DWORD PTR DS:[EAX-4]=0D ADD EAX,-4=0D ADD EDX,4=0D =0D =0D Vendor Response:=0D =0D The above vulnerability was addressed for the affected=0D platforms via Microsoft Security Bulletin MS06-38. If=0D there are any further questions about this statement,=0D please contact secure@microsoft.com.=0D =0D =0D Recommendation:=0D Follow your organization's testing procedures before=0D applying patches or workarounds. Customers should apply=0D Microsoft's update as soon as possible.=0D =0D =0D Common Vulnerabilities and Exposures (CVE) Information:=0D =0D The Common Vulnerabilities and Exposures (CVE) project has assigned=0D the following names to these issues. These are candidates for=0D inclusion in the CVE list (http://cve.mitre.org), which standardizes=0D names for security problems.=0D =0D CVE-2006-1540=0D =0D =0D - -------Symantec Vulnerability Research Advisory Information-------=0D =0D For questions about this advisory, or to report an error:=0D research@symantec.com=0D =0D For details on Symantec's Vulnerability Reporting Policy:=0D http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf=0D =0D Symantec Vulnerability Research Advisory Archive:=0D http://www.symantec.com/research/=0D =0D Symantec Vulnerability Research GPG Key:=0D http://www.symantec.com/research/Symantec_Consulting_Services_Advisories_GPG.asc=0D =0D - -------------Symantec Product Advisory Information-------------=0D =0D To Report a Security Vulnerability in a Symantec Product:=0D secure@symantec.com=0D =0D For general information on Symantec's Product Vulnerability=0D reporting and response:=0D http://www.symantec.com/security/=0D =0D Symantec Product Advisory Archive:=0D http://www.symantec.com/avcenter/security/SymantecAdvisories.html=0D =0D Symantec Product Advisory PGP Key:=0D http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.asc=0D =0D - ---------------------------------------------------------------=0D =0D Copyright (c) 2006 by Symantec Corp.=0D Permission to redistribute this alert electronically is granted=0D as long as it is not edited in any way unless authorized by=0D Symantec Consulting Services. Reprinting the whole or part of=0D this alert in any medium other than electronically requires=0D permission from cs_advisories@symantec.com.=0D =0D Disclaimer=0D The information in the advisory is believed to be accurate at the=0D time of publishing based on currently available information. Use=0D of the information constitutes acceptance for use in an AS IS=0D condition. There are no warranties with regard to this information.=0D Neither the author nor the publisher accepts any liability for any=0D direct, indirect, or consequential loss or damage arising from use=0D of, or reliance on, this information.=0D =0D Symantec, Symantec products, and Symantec Consulting Services are=0D registered trademarks of Symantec Corp. and/or affiliated companies=0D in the United States and other countries. All other registered and=0D unregistered trademarks represented in this document are the sole=0D property of their respective companies/owners.=0D -----BEGIN PGP SIGNATURE-----=0D Version: GnuPG v1.4.0 (Cygwin)=0D =0D iD8DBQFEspITuk7IIFI45IARAiJyAJ4gvZGmSFL5B+ZOpCYrq3pXQrH6WgCgjDJu=0D c6RMB/od64/cLbHSwy3EC/w==0D =MYz8=0D -----END PGP SIGNATURE-----=0D