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Symantec Vulnerability Research=0D
http://www.symantec.com/research=0D
Security Advisory=0D
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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
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Overview:=0D
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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
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Details:=0D
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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
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MOV EDX,DWORD PTR DS:[EAX-4]=0D
ADD EAX,-4=0D
ADD EDX,4=0D
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Vendor Response:=0D
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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
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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
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Common Vulnerabilities and Exposures (CVE) Information:=0D
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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
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CVE-2006-1540=0D
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- -------Symantec Vulnerability Research Advisory Information-------=0D
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For questions about this advisory, or to report an error:=0D
research@symantec.com=0D
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For details on Symantec's Vulnerability Reporting Policy:=0D
http://www.symantec.com/research/Symantec-Responsible-Disclosure.pdf=0D
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Symantec Vulnerability Research Advisory Archive:=0D
http://www.symantec.com/research/=0D
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Symantec Vulnerability Research GPG Key:=0D
http://www.symantec.com/research/Symantec_Consulting_Services_Advisories_GPG.asc=0D
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- -------------Symantec Product Advisory Information-------------=0D
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To Report a Security Vulnerability in a Symantec Product:=0D
secure@symantec.com=0D
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For general information on Symantec's Product Vulnerability=0D
reporting and response:=0D
http://www.symantec.com/security/=0D
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Symantec Product Advisory Archive:=0D
http://www.symantec.com/avcenter/security/SymantecAdvisories.html=0D
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Symantec Product Advisory PGP Key:=0D
http://www.symantec.com/security/Symantec-Vulnerability-Management-Key.asc=0D
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- ---------------------------------------------------------------=0D
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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
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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
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