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Secunia Research: Microsoft PowerPoint Atom Parsing Buffer Overflows

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                     Secunia Research 12/05/2009

        - Microsoft PowerPoint Atom Parsing Buffer Overflows -

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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

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1) Affected Software 

* Microsoft PowerPoint 2000 SP3

NOTE: Other versions may also be affected.

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2) Severity 

Rating: Highly critical
Impact: System compromise
Where:  Remote

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3) Vendor's Description of Software 

"Microsoft Office PowerPoint 2007 enables users to quickly create
high-impact, dynamic presentations, while integrating workflow and 
ways to easily share information. From the Microsoft Office Fluent 
user interface to the new graphics and formatting capabilities, Office
PowerPoint 2007 puts the control in your hands to create great-looking
presentations.".

Product Link:
http://office.microsoft.com/powerpoint

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4) Description of Vulnerability

Secunia Research has discovered two vulnerabilities in Microsoft 
Office PowerPoint, which can be exploited by malicious people to 
compromise a user's system.

The vulnerabilities are caused by boundary errors when processing 
certain atoms and can be exploited to cause stack-based buffer
overflows via a specially crafted PowerPoint file.

Successful exploitation allows execution of arbitrary code.

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5) Solution 

Apply patches from MS09-017.

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6) Time Table 

30/10/2008 - Vendor notified.
30/10/2008 - Vendor response.
07/11/2008 - Vendor provides status update.
11/12/2008 - Vendor provides status update.
20/02/2009 - Vendor provides status update.
24/04/2009 - Vendor provides status update.
05/05/2009 - Vendor provides status update.
12/05/2009 - Public disclosure.

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7) Credits 

Discovered by Carsten Eiram, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2009-1131 for the vulnerability.

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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/

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10) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2008-46/

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

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