CVE-2011-1989: Input Validation
First published: Thu Sep 15 2011(Updated: )
Microsoft Excel 2003 SP3 and 2007 SP2; Excel in Office 2007 SP2; Excel 2010 Gold and SP1; Excel in Office 2010 Gold and SP1; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Excel Viewer SP2; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; Excel Services on Office SharePoint Server 2007 SP2; Excel Services on Office SharePoint Server 2010 Gold and SP1; and Excel Web App 2010 Gold and SP1 do not properly parse conditional expressions associated with formatting requirements, which allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel Conditional Expression Parsing Vulnerability."
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Office Excel | =2003-sp3 | |
| Microsoft Office Excel | =2007-sp2 | |
| Microsoft Office Excel | =2010 | |
| Microsoft Office Excel | =2010 | |
| Microsoft Office Excel | =2010-sp1 | |
| Microsoft Office Excel | =2010-sp1 | |
| Microsoft Office Excel Viewer | =sp2 | |
| Microsoft Excel Web App | =2010 | |
| Microsoft Excel Web App | =2010-sp1 | |
| Microsoft Office | =2004 | |
| Microsoft Office | =2007-sp2 | |
| Microsoft Office | =2008 | |
| Microsoft Office | =2010 | |
| Microsoft Office | =2010 | |
| Microsoft Office | =2010-sp1 | |
| Microsoft Office | =2010-sp1 | |
| Microsoft Office | =2011 | |
| Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint | =2007-sp2 | |
| Microsoft Open XML File Format Converter | ||
| Microsoft SharePoint Server 2010 | =2007-sp2 | |
| Microsoft SharePoint Server 2010 | =2007-sp2 | |
| Microsoft SharePoint Server 2010 | =2010 | |
| Microsoft SharePoint Server 2010 | =2010-sp1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-1989?
CVE-2011-1989 has a severity rating of critical, as it allows remote code execution.
How do I fix CVE-2011-1989?
To fix CVE-2011-1989, apply the security updates provided by Microsoft for the affected versions of Office and Excel.
What systems are affected by CVE-2011-1989?
CVE-2011-1989 affects Microsoft Excel 2003, 2007, 2010, as well as various versions of Microsoft Office and SharePoint.
What are the potential impacts of CVE-2011-1989?
The potential impacts of CVE-2011-1989 include unauthorized access to system resources and execution of arbitrary code.
Is there a workaround for CVE-2011-1989?
There are no official workarounds for CVE-2011-1989, so updating to a patched version is recommended.
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- collector/mitre-cve
- source/MITRE
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- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-historical
- vendor/microsoft
- canonical/microsoft office excel
- version/microsoft office excel/2003-sp3
- version/microsoft office excel/2007-sp2
- version/microsoft office excel/2010
- version/microsoft office excel/2010-sp1
- canonical/microsoft office excel viewer
- version/microsoft office excel viewer/sp2
- canonical/microsoft excel web app
- version/microsoft excel web app/2010
- version/microsoft excel web app/2010-sp1
- canonical/microsoft office
- version/microsoft office/2004
- version/microsoft office/2007-sp2
- version/microsoft office/2008
- version/microsoft office/2010
- version/microsoft office/2010-sp1
- version/microsoft office/2011
- canonical/microsoft office compatibility pack for word, excel, and powerpoint
- version/microsoft office compatibility pack for word, excel, and powerpoint/2007-sp2
- canonical/microsoft open xml file format converter
- canonical/microsoft sharepoint server 2010
- version/microsoft sharepoint server 2010/2007-sp2
- version/microsoft sharepoint server 2010/2010
- version/microsoft sharepoint server 2010/2010-sp1