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Microsoft Security Bulletin MS10-064 - Critical

Vulnerability in Microsoft Outlook Could Allow Remote Code Execution (2315011)

Published: | Updated:

Version: 1.1

General Information

Executive Summary

This security update resolves a privately reported vulnerability. The vulnerability could allow remote code execution if a user opened or previewed a specially crafted e-mail message using an affected version of Microsoft Outlook that is connected to an Exchange server with Online Mode. An attacker who successfully exploited this vulnerability could gain the same user rights as the local 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 Critical for all supported editions of Microsoft Outlook 2002 and is rated Important for all supported editions of Microsoft Outlook 2003 and Microsoft Outlook 2007. For more information, see the subsection, Affected and Non-Affected Software, in this section.

This security update addresses the vulnerability by correcting the way that Microsoft Outlook parses content in a specially crafted e-mail message. 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 2315011 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.

Affected and Non-Affected Software

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.

Affected Software

Microsoft Office Suite and Other SoftwareComponentMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Microsoft Office XP Service Pack 3Microsoft Outlook 2002 Service Pack 3
(KB2293422)
Remote Code ExecutionCriticalMS06-012
Microsoft Office 2003 Service Pack 3Microsoft Outlook 2003 Service Pack 3
(KB2293428)
Remote Code ExecutionImportantNone
Microsoft Office 2007 Service Pack 2Microsoft Outlook 2007 Service Pack 2
(KB2288953)
Remote Code ExecutionImportantMS10-045

Non-Affected Software

Office and Other Software
Microsoft Outlook 2010 (32-bit editions)
Microsoft Outlook 2010 (64-bit editions)

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

Heap Based Buffer Overflow in Outlook Vulnerability - CVE-2010-2728

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:

  • Dyon Balding of Secunia for reporting the Heap Based Buffer Overflow in Outlook Vulnerability (CVE-2010-2728)

Microsoft Active Protections Program (MAPP)

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.

Support

  • 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.

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 (September 14, 2010): Bulletin published.
  • V1.1 (September 22, 2010): Removed erroneous references to Outlook Express 6 in the workaround for Heap Based Buffer Overflow in Outlook Vulnerability - CVE-2010-2728.