Microsoft Security Bulletin MS10-003 - Important
Vulnerability in Microsoft Office (MSO) Could Allow Remote Code Execution (978214)
Published: | Updated:
This security update resolves a privately reported vulnerability in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. 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. 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 Office XP and Microsoft Office 2004 for Mac. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The update addresses the vulnerability by modifying the way that Microsoft Office opens files. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.
Recommendation. Microsoft recommends that customers apply the update at the earliest opportunity.
Known Issues. Microsoft Knowledge Base Article 978214 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues. When currently known issues and recommended solutions pertain only to specific releases of this software, this article provides links to further articles.
The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.
|Office Suite and Other Software||Maximum Security Impact||Aggregate Severity Rating||Bulletins Replaced by this Update|
|Microsoft Office Suites and Components|
|Microsoft Office XP Service Pack 3|
|Remote Code Execution||Important||MS09-062|
|Microsoft Office for Mac|
|Microsoft Office 2004 for Mac|
|Remote Code Execution||Important||None|
|Office and Other Software|
|Microsoft Office 2003 Service Pack 3|
|2007 Microsoft Office System Service Pack 1|
|2007 Microsoft Office System Service Pack 2|
|Microsoft Office 2008 for Mac|
|Open XML File Format Converter for Mac|
|Microsoft Office Excel Viewer Service Pack 1 and Microsoft Office Excel Viewer Service Pack 2|
|Microsoft Office Word Viewer|
|PowerPoint Viewer 2007 Service Pack 1 and PowerPoint Viewer 2007 Service Pack 2|
|Visio Viewer 2007 Service Pack 1 and Visio Viewer 2007 Service Pack 2|
|Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1 and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2|
|Microsoft Works 8.5|
|Microsoft Works 9|
Microsoft thanks the following for working with us to help protect customers:
- Damian Frizza of Core Security Technologies for reporting the MSO.DLL Buffer Overflow Vulnerability (CVE-2010-0243)
To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections Web sites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.
- Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. For more information about available support options, see Microsoft Help and Support.
- International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.
The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
- V1.0 (February 9, 2010): Bulletin published.
- V1.1 (February 10, 2010): Added a link to Microsoft Knowledge Base Article 978214 under Known Issues in the Executive Summary.