Microsoft Security Bulletin MS10-054 - Critical

Vulnerabilities in SMB Server Could Allow Remote Code Execution (982214)

Published: | Updated:

Version: 1.3

General Information

Executive Summary

This security update resolves several privately reported vulnerabilities in Microsoft Windows. The most severe of these vulnerabilities could allow remote code execution if an attacker created a specially crafted SMB packet and sent the packet to an affected system. Firewall best practices and standard default firewall configurations can help protect networks from attacks originating outside the enterprise perimeter that would attempt to exploit these vulnerabilities.

This security update is rated Critical for all supported editions of Windows XP and Important for all supported editions of Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses these vulnerabilities by correcting the way that SMB validates SMB requests. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. None

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

Operating SystemMaximum Security ImpactAggregate Severity RatingBulletins Replaced by this Update
Windows XP Service Pack 3Remote Code ExecutionCriticalMS10-012
Windows XP Professional x64 Edition Service Pack 2Remote Code ExecutionCriticalMS10-012
Windows Server 2003 Service Pack 2Elevation of PrivilegeImportantMS10-012
Windows Server 2003 x64 Edition Service Pack 2Elevation of PrivilegeImportantMS10-012
Windows Server 2003 with SP2 for Itanium-based SystemsElevation of PrivilegeImportantMS10-012
Windows Vista Service Pack 1Elevation of PrivilegeImportantMS09-050,
MS09-001
Windows Vista Service Pack 2Elevation of PrivilegeImportantMS09-050
Windows Vista x64 Edition Service Pack 1Elevation of PrivilegeImportantMS09-050,
MS09-001
Windows Vista x64 Edition Service Pack 2Elevation of PrivilegeImportantMS09-050
Windows Server 2008 for 32-bit Systems*Elevation of PrivilegeImportantMS09-050,
MS09-001
Windows Server 2008 for 32-bit Systems Service Pack 2*Elevation of PrivilegeImportantMS09-050
Windows Server 2008 for x64-based Systems*Elevation of PrivilegeImportantMS09-050,
MS09-001
Windows Server 2008 for x64-based Systems Service Pack 2*Elevation of PrivilegeImportantMS09-050
Windows Server 2008 for Itanium-based SystemsElevation of PrivilegeImportantMS09-050,
MS09-001
Windows Server 2008 for Itanium-based Systems Service Pack 2Elevation of PrivilegeImportantMS09-050
Windows 7 for 32-bit SystemsElevation of PrivilegeImportantMS10-012
Windows 7 for x64-based SystemsElevation of PrivilegeImportantMS10-012
Windows Server 2008 R2 for x64-based Systems*Elevation of PrivilegeImportantMS10-012
Windows Server 2008 R2 for Itanium-based SystemsElevation of PrivilegeImportantMS10-012

*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.

Frequently Asked Questions (FAQ) Related to This Security Update

Vulnerability Information

Severity Ratings and Vulnerability Identifiers

SMB Pool Overflow Vulnerability - CVE-2010-2550

SMB Variable Validation Vulnerability - CVE-2010-2551

SMB Stack Exhaustion Vulnerability - CVE-2010-2552

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:

  • Laurent Gaffié of stratsec for reporting the SMB Pool Overflow Vulnerability (CVE-2010-2550)
  • Todd Wease and Richard Johnson of Sourcefire VRT for reporting the SMB Stack Exhaustion Vulnerability (CVE-2010-2552)
  • Riku Hietamaki and Joshua Morin of Codenomicon for reporting the SMB Stack Exhaustion Vulnerability (CVE-2010-2552)

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 (August 10, 2010): Bulletin published.
  • V1.1 (August 11, 2010): Corrected the security impact for Windows Server 2003, Windows 7, and Windows Server 2008 R2 for SMB Pool Overflow Vulnerability - CVE-2010-2550. This is an informational change only.
  • V1.2 (August 25, 2010): Removed erroneous reference to a Microsoft Fix it solution from the workarounds for SMB Stack Exhaustion Vulnerability - CVE-2010-2552.
  • V1.3 (November 9, 2010): Added an update FAQ to announce a detection change that corrects the replaced bulletin for supported editions of Windows Vista and Windows Server 2008. This is a detection change only. There were no changes to the security update files.