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==================================================================== CERT-Renater Note d'Information No. 2011/VULN330 _____________________________________________________________________ DATE : 13/04/2011 HARDWARE PLATFORM(S) : / OPERATING SYSTEM(S) : Systems running Microsoft Office version XP, 2003, 2007, 2010 2004, 2008, Open XML File Format Converter for Mac, Microsoft Excel Viewer, Microsoft Office Compatibility Pack for Word, Excel and PowerPoint 2007 File Formats. ====================================================================== KB2489279 http://www.microsoft.com/technet/security/Bulletin/MS11-021.mspx ______________________________________________________________________ Microsoft Security Bulletin MS11-021 - Important Vulnerabilities in Microsoft Excel Could Allow Remote Code Execution (2489279) Version: 1.0 General Information Executive Summary This security update resolves nine privately reported vulnerabilities in Microsoft Office. The vulnerabilities could allow remote code execution if a user opens a specially crafted Excel file. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the logged-on user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. This security update is rated Important for all supported editions of Microsoft Excel 2002, Microsoft Excel 2003, Microsoft Excel 2007, Microsoft Excel 2010, Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, and Microsoft Office for Mac 2011; Open XML File Format Converter for Mac; and all supported versions of Microsoft Office Excel Viewer and Microsoft Office Compatibility Pack. For more information, see the subsection, Affected and Non-Affected Software, in this section. Affected Software Microsoft Office XP Service Pack 3 Microsoft Office 2003 Service Pack 3 Microsoft Office 2007 Service Pack 2 Microsoft Office 2010 (32-bit editions) Microsoft Office 2010 (64-bit editions) Microsoft Office 2004 for Mac Microsoft Office 2008 for Mac Microsoft Office for Mac 2011 Open XML File Format Converter for Mac Microsoft Excel Viewer Service Pack 2 Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2 Vulnerability Information Excel Integer Overrun Vulnerability - CVE-2011-0097 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Heap Overflow Vulnerability - CVE-2011-0098 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Record Parsing WriteAV Vulnerability - CVE-2011-0101 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Memory Corruption Vulnerability - CVE-2011-0103 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Buffer Overwrite Vulnerability - CVE-2011-0104 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Data Initialization Vulnerability - CVE-2011-0105 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Array Indexing Vulnerability - CVE-2011-0978 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Linked List Corruption Vulnerability - CVE-2011-0979 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Excel Dangling Pointer Vulnerability - CVE-2011-0980 A remote code execution vulnerability exists in the way that Microsoft Excel handles specially crafted Excel files. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. ====================================================================== ========================================================= Les serveurs de référence du CERT-Renater http://www.urec.fr/securite http://www.cru.fr/securite http://www.renater.fr ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================