Secunia Research: Microsoft Office FlashPix Tile Data Two Buffer Overflows

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                 Secunia Research 14/12/2010

 - Microsoft Office Two FlashPix Tile Data 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 Office XP SP3
• Microsoft Office Converter Pack

NOTE: Other versions may also be affected.

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2) Severity

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

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3) Vendor's Description of Software

"To convert documents to and from different formats or to insert
graphics, you must install the appropriate text converters or graphics
filters included with the Microsoft Office 2000 Setup or the Microsoft
Office Converter Pack.".

Product Link:
http://office.microsoft.org/

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4) Description of Vulnerability

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

1) A boundary error in the FlashPix graphics filter when parsing
certain tile data can be exploited to cause a data section buffer
overflow via a specially crafted image.

2) A boundary error in the FlashPix graphics filter when parsing
certain tile data can be exploited to cause a stack-based buffer
overflow via a specially crafted image.

Successful exploitation of the vulnerabilities allows execution of
arbitrary code.

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5) Solution

Apply patches provided by MS10-105.

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6) Time Table

27/07/2009 - Vendor notified.
27/07/2009 - Vendor response.
19/08/2009 - Vendor provides status update.
24/09/2009 - Vendor provides status update.
27/10/2009 - Vendor provides status update.
08/12/2009 - Vendor provides status update.
29/01/2010 - Vendor provides status update.
30/04/2010 - Vendor provides status update (tentatively targetting
August 2010).
23/07/2010 - Vendor provides status update (slipped from August 2010
release and now scheduled for November 2010).
04/11/2010 - Vendor provides status update (slipped from November 2010
release and now scheduled for December 2010).
08/11/2010 - Vendor informed that this is the final deadline.
14/12/2010 - Public disclosure.

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7) Credits

Discovered by Dyon Balding, Secunia Research.

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8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-3952 for the vulnerabilities.

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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/2009-32/

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

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