====================================================================== Secunia Research 14/12/2010 - Microsoft Office TIFF Image Converter Two 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 * Microsoft Works 9 NOTE: Other versions may also be affected. ====================================================================== 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 two vulnerabilities in Microsoft Office, which can be exploited by malicious people to compromise a user's system. 1) An input validation error in the TIFF Import/Export Graphic Filter when copying certain data can be exploited to cause a heap-based buffer overflow via a specially crafted TIFF image. 2) Another input validation error in the TIFF Import/Export Graphic Filter when copying certain data after having encountered a specific error can be exploited to cause a heap-based buffer overflow via a specially crafted TIFF image. Successful exploitation of the vulnerabilities may allow execution of arbitrary code when processing a TIFF image in an application using the graphics filter (e.g. opening the image in Microsoft Photo Editor or importing it into an Office document). ====================================================================== 5) Solution Apply patches provided by MS10-105. ====================================================================== 6) Time Table 07/07/2010 - Vendor notified about vulnerability #1. 08/07/2010 - Vendor notified about vulnerability #2. 08/07/2010 - Vendor response. 15/08/2010 - Vendor provides status update. 11/01/2010 - Status update requested. 11/01/2010 - Vendor provides status update (tentatively targetting May 2010). 30/04/2010 - Vendor provides status update (slipped from May 2010 release and now 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. 14/12/200X - Public disclosure. ====================================================================== 7) Credits Discovered by Carsten Eiram, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-3947 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/2009-30/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ====================================================================== _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/