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Microsoft Security Bulletin MS07-043 - Critical

Vulnerability in OLE Automation Could Allow Remote Code Execution (921503)

Published: August 14, 2007

Version: 1.0

General Information

Executive Summary

This critical security update resolves a privately reported vulnerability. This vulnerability could allow remote code execution if a user viewed a specially crafted Web page. The vulnerability could be exploited through attacks on Object Linking and Embedding (OLE). 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 is a critical security update for all supported editions of Windows 2000, Windows XP, Office 2004 for Mac, and Visual Basic 6. For other affected editions of Windows, this update is rated moderate. For more information, see the subsection, Affected and Non-Affected Software, in this section.

This security update addresses the vulnerability by adding a check on memory requests within OLE Automation. 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 immediately.

Known Issues: Microsoft Knowledge Base Article 921503 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues.

Affected and Non-Affected Software

In the following tables of affected and non-affected software, software editions that are not listed are past their support lifecycle. To determine the support lifecycle for your product and edition, visit Microsoft Support Lifecycle.

Affected Software

SoftwareMaximum Security ImpactAggregate Severity RatingBulletins Replaced by This Update

Windows 2000 Service Pack 4

Remote Code Execution

Critical

None

Windows XP Service Pack 2

Remote Code Execution

Critical

None

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2

Remote Code Execution

Critical

None

Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2

Remote Code Execution

Moderate

None

Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2

Remote Code Execution

Moderate

None

Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems

Remote Code Execution

Moderate

None

Microsoft Office 2004 for Mac

Remote Code Execution

Critical

None

Microsoft Visual Basic 6.0 Service Pack 6 (KB924053)

Remote Code Execution

Critical

None

Non-Affected Software

Operating System

Windows Vista

Windows Vista x64 Edition

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

OLE Automation Memory Corruption Vulnerability - CVE-2007-2224

Update Information

Detection and Deployment Tools and Guidance

Security Update Deployment

Other Information

Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

An anonymous researcher working with the VeriSign iDefense VCP for reporting the OLE Automation Memory Corruption Vulnerability (CVE-2007-2224).

An anonymous researcher working with the Zero Day Initiative for reporting the OLE Automation Memory Corruption Vulnerability (CVE-2007-2224).

Support

Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.

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.

Disclaimer

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.

Revisions

V1.0 (August 14, 2007): Bulletin published.


 

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