====================================================================== Secunia Research 14/12/2010 - Microsoft Office Two FlashPix Tile Data Buffer Overflows - ====================================================================== 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 "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/ ====================================================================== 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. ====================================================================== 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 this 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-2010-3952 for the vulnerabilities. ====================================================================== 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/2009-32/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================