bugtraq - Secunia Research: Microsoft Excel Extra Out of Boundary Record Vulnerability

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Date: Tue, 12 Oct 2010 22:22:17 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: bugtraq@...urityfocus.com
Subject: Secunia Research: Microsoft Excel Extra Out of Boundary Record Vulnerability

====================================================================== 

                     Secunia Research 12/10/2010

   - Microsoft Excel Extra Out of Boundary Record Vulnerability -

====================================================================== 
Table of Contents

Affected Software....................................................1
Severity.............................................................2
Vendor's Description of Software.....................................3
Description of Vulnerability.........................................4
Solution.............................................................5
Time Table...........................................................6
Credits..............................................................7
References...........................................................8
About Secunia........................................................9
Verification........................................................10

====================================================================== 
1) Affected Software 

* Microsoft Excel 2002 SP3

NOTE: Other versions may also be affected.

====================================================================== 
2) Severity 

Rating: Highly critical
Impact: System access
Where:  From remote

====================================================================== 
3) Vendor's Description of Software 

"Microsoft Office Excel is a powerful tool you can use to create and
format spreadsheets, and analyze and share information to make more 
informed decisions."

Product Link:
http://office.microsoft.com/en-us/excel/default.aspx

====================================================================== 
4) Description of Vulnerability

Secunia Research has discovered a vulnerability in Microsoft Excel, 
which can be exploited by malicious people to compromise a user's 
system.

The vulnerability is caused by an error when processing Extra Out of 
Boundary records having an insufficient size and can be exploited to 
corrupt memory at an arbitrary memory address.

Successful exploitation may allow execution of arbitrary code.

====================================================================== 
5) Solution 

Apply patches provided by MS10-080.

====================================================================== 
6) Time Table 

23/04/2010 - Vendor notified.
24/04/2010 - Vendor response.
27/04/2010 - Vendor provides status update.
25/05/2010 - Vendor provides status update.
30/09/2010 - Vendor provides status update.
12/10/2010 - Public disclosure.

====================================================================== 
7) Credits 

Discovered by Alin Rad Pop, Secunia Research.

====================================================================== 
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-3239 for the vulnerability.

====================================================================== 
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private 
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the 
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

====================================================================== 
10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2010-63/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================