Microsoft Office Excel Record Integer Overflow Vulnerability

Publish date: February 15, 2011
  Severity: CRITICAL
  CVE Identifier: CVE-2009-0561,MS09-021
  Advisory Date: FEB 15, 2011

  DESCRIPTION

 Integer overflow in Excel in Microsoft Office 2000 SP3, Office XP SP3, Office 2003 SP3, and Office 2004 and 2008 for Mac; Excel in 2007 Microsoft Office System SP1 and SP2; Open XML File Format Converter for Mac; Microsoft Office Excel Viewer 2003 SP3; Microsoft Office Excel Viewer; Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP1 and SP2; and Microsoft Office SharePoint Server 2007 SP1 and SP2 allows remote attackers to execute arbitrary code via an Excel file with a Shared String Table (SST) record with a numeric field that specifies an invalid number of unique strings, which triggers a heap-based buffer overflow, aka "Record Integer Overflow Vulnerability."

  TREND MICRO PROTECTION INFORMATION

Trend Micro Deep Security shields networks through Deep Packet Inspection (DPI) rules. Trend Micro customers using OfficeScan with Intrusion Defense Firewall (IDF) plugin are also protected from attacks using these vulnerabilities. Please refer to the filter number and filter name when applying appropriate DPI and/or IDF rules.

  SOLUTION

  Trend Micro Deep Security DPI Rule Number: 1003559
  Trend Micro Deep Security DPI Rule Name: 1003559 - Microsoft Office Excel Record Integer Overflow Vulnerability

  AFFECTED SOFTWARE AND VERSION

  • microsoft office 2004
  • microsoft office 2008
  • microsoft office xp
  • microsoft office_compatibility_pack_for_word_excel_ppt_2007
  • microsoft office_excel 2000
  • microsoft office_excel 2003
  • microsoft office_excel 2007
  • microsoft office_excel_viewer 2003
  • microsoft office_sharepoint_server 2007
  • microsoft open_xml_file_format_converter

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