====================================================================== Secunia Research 12/10/2010 - Microsoft Excel Extra Out of Boundary Record Vulnerability - ====================================================================== 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 Excel 2002 SP3 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System access Where: From remote ====================================================================== 3) Vendor's Description of Software "Microsoft Office Excel is a powerful tool you can use to create and format spreadsheets, and analyze and share information to make more informed decisions." Product Link: http://office.microsoft.com/en-us/excel/default.aspx ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in Microsoft Excel, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused by an error when processing Extra Out of Boundary records having an insufficient size and can be exploited to corrupt memory at an arbitrary memory address. Successful exploitation may allow execution of arbitrary code. ====================================================================== 5) Solution Apply patches provided by MS10-080. ====================================================================== 6) Time Table 23/04/2010 - Vendor notified. 24/04/2010 - Vendor response. 27/04/2010 - Vendor provides status update. 25/05/2010 - Vendor provides status update. 30/09/2010 - Vendor provides status update. 12/10/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Alin Rad Pop, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-3239 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/2010-63/ 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/