bugtraq - Secunia Research: Microsoft Office BMP Image Colour Handling Integer Overflow

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Message-Id: <200910141503.n9EF39Lg028365@CA-IX-1.intnet>
Date: Wed, 14 Oct 2009 17:03:09 +0200
From: Secunia Research <remove-vuln@...unia.com>
To: bugtraq@...urityfocus.com
Subject: Secunia Research: Microsoft Office BMP Image Colour Handling Integer Overflow

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

                     Secunia Research 14/10/2009

   - Microsoft Office BMP Image Colour Handling Integer 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


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

Rating: Highly critical
Impact: System compromise
Where:  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 due to an integer overflow when processing
the number of colours used in a bitmap image. This can be exploited 
to cause a heap-based buffer overflow via a specially crafted bitmap 
image.

Successful exploitation may allow execution of arbitrary code.

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

Apply patches.

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

15/08/2008 - Vendor notified.
15/08/2008 - Vendor response.
21/08/2008 - Vendor provides status update.
04/09/2008 - Additional information provided to the vendor.
04/09/2008 - Vendor response.
17/09/2008 - Additional information provided to the vendor.
26/09/2008 - Additional information provided to the vendor.
26/09/2008 - Vendor response.
16/01/2009 - Vendor provides status update.
20/02/2009 - Vendor provides status update.
24/04/2009 - Vendor provides status update.
14/10/2009 - Public disclosure.

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

Discovered by Carsten Eiram, Secunia Research.

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

The Common Vulnerabilities and Exposures (CVE) project has assigned 
CVE-2009-2518 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/2008-37/

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

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