Secunia Research: Microsoft Office FlashPix Property Set Parsing Buffer Overflow

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

                 Secunia Research 14/12/2010

• Microsoft Office FlashPix Property Set Parsing Buffer Overflow -

======================================================================
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 Office XP SP3
• Microsoft Office Converter Pack

NOTE: Other versions may also be affected.

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

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

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

"Microsoft Office is a complete suite of productivity and database
software that will help you save time and stay organized".

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

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

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

The vulnerability is caused by a boundary error in the FlashPix
graphics filter when parsing certain property sets. This can be
exploited to cause a stack-based buffer overflow via a specially
crafted FlashPix image.

Successful exploitation allows execution of arbitrary code.

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

Apply patches provided by MS10-105.

======================================================================
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 December is the final deadline.
14/12/2010 - Public disclosure.

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

Discovered by Dyon Balding, Secunia Research.

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

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2010-3951 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/2009-33/

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

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