====================================================================== Secunia Research 14/09/2010 - Microsoft Outlook Content Parsing Integer Underflow 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 Outlook 2002 SP3 * Microsoft Outlook 2003 SP3 * Microsoft Outlook 2007 SP2 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System access Where: From remote ====================================================================== 3) Vendor's Description of Software "Manage your time and information, connect across boundaries and protect your information with Outlook". Product Link: http://office.microsoft.com/outlook/default.aspx ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in Microsoft Outlook, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused by an integer underflow error when parsing certain content and can be exploited to cause a heap-based buffer overflow via e.g. a specially crafted e-mail message. Successful exploitation may allow execution of arbitrary code, but requires that Outlook is connected to an Exchange server with Online Mode (not default setting for Outlook 2003 and 2007). ====================================================================== 5) Solution Apply patches provided by MS10-064. ====================================================================== 6) Time Table 24/02/2009 - Vendor notified. 27/02/2009 - Vendor response. 05/03/2009 - Vendor provides status update (having problems reproducing the reported vulnerability). 06/03/2009 - Additional details and crash dump provided to vendor. 22/05/2009 - Vendor provides status update (still investigating). 12/08/2009 - Vendor provides status update (vulnerability confirmed). 24/09/2009 - Vendor provides status update (scheduled for December). 29/10/2009 - Vendor provides status update (still scheduled for December, but may slip to February 2010). 18/12/2009 - Vendor provides status update (scheduled for March 2010). 12/02/2010 - Vendor provides status update (scheduled for April). 04/03/2010 - Vendor provides status update (scheduled for April). 06/04/2010 - Vendor provides status update (slipped April release due to last minute problems). 07/08/2010 - Vendor provides status update (scheduled for September). 03/09/2010 - Vendor provides status update (scheduled for September). 08/09/2010 - Vendor provides status update (scheduled for September). 14/09/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Dyon Balding, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-2728 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/2009-15/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================