Microsoft Security Bulletin Summary for November 2011
Published:
Version: 1.0
This bulletin summary lists security bulletins released for November 2011.
With the release of the security bulletins for November 2011, this bulletin summary replaces the bulletin advance notification originally issued November 3, 2011. For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.
For information about how to receive automatic notifications whenever Microsoft security bulletins are issued, visit Microsoft Technical Security Notifications.
Microsoft is hosting a webcast to address customer questions on these bulletins on November 9, 2011, at 11:00 AM Pacific Time (US & Canada). Register now for the November Security Bulletin Webcast. After this date, this webcast is available on-demand. For more information, see Microsoft Security Bulletin Summaries and Webcasts.
Microsoft also provides information to help customers prioritize monthly security updates with any non-security updates that are being released on the same day as the monthly security updates. Please see the section, Other Information.
Microsoft
has released an updated version of the Microsoft Windows Malicious
Software Removal Tool on Windows Update, Microsoft Update, Windows
Server Update Services, and the Download Center.
For information about non-security releases on Windows Update and Microsoft Update, please see:
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.
Update Management Strategies
Security Guidance for Update Management provides additional information about Microsoft’s best-practice recommendations for applying security updates.
Obtaining Other Security Updates
Updates for other security issues are available from the following locations:
Learn to improve security and optimize your IT infrastructure, and participate with other IT Pros on security topics in IT Pro Security Community.
Microsoft thanks the following for working with us to help protect customers:
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
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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.
With the release of the security bulletins for November 2011, this bulletin summary replaces the bulletin advance notification originally issued November 3, 2011. For more information about the bulletin advance notification service, see Microsoft Security Bulletin Advance Notification.
For information about how to receive automatic notifications whenever Microsoft security bulletins are issued, visit Microsoft Technical Security Notifications.
Microsoft is hosting a webcast to address customer questions on these bulletins on November 9, 2011, at 11:00 AM Pacific Time (US & Canada). Register now for the November Security Bulletin Webcast. After this date, this webcast is available on-demand. For more information, see Microsoft Security Bulletin Summaries and Webcasts.
Microsoft also provides information to help customers prioritize monthly security updates with any non-security updates that are being released on the same day as the monthly security updates. Please see the section, Other Information.
Bulletin Information
Executive Summaries
The following table summarizes the security bulletins for this month in order of severity.
For details on affected software, see the next section, Affected Software and Download Locations.
For details on affected software, see the next section, Affected Software and Download Locations.
Bulletin ID | Bulletin Title and Executive Summary | Maximum Severity Rating and Vulnerability Impact | Restart Requirement | Affected Software |
---|---|---|---|---|
MS11-083 | Vulnerability in TCP/IP Could Allow Remote Code Execution (2588516) This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if an attacker sends a continuous flow of specially crafted UDP packets to a closed port on a target system. | Critical Remote Code Execution | Requires restart | Microsoft Windows |
MS11-085 | Vulnerability in Windows Mail and Windows Meeting Space Could Allow Remote Code Execution (2620704) This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if a user opens a legitimate file (such as an .eml or .wcinv file) that is located in the same network directory as a specially crafted dynamic link library (DLL) file. Then, while opening the legitimate file, Windows Mail or Windows Meeting Space could attempt to load the DLL file and execute any code it contained. For an attack to be successful, a user must visit an untrusted remote file system location or WebDAV share and open a legitimate file (such as an .eml or .wcinv file) from this location that is then loaded by a vulnerable application. | Important Remote Code Execution | May require restart | Microsoft Windows |
MS11-086 | Vulnerability in Active Directory Could Allow Elevation of Privilege (2630837) This security update resolves a privately reported vulnerability in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS). The vulnerability could allow elevation of privilege if Active Directory is configured to use LDAP over SSL (LDAPS) and an attacker acquires a revoked certificate that is associated with a valid domain account and then uses that revoked certificate to authenticate to the Active Directory domain. By default, Active Directory is not configured to use LDAP over SSL. | Important Elevation of Privilege | Requires restart | Microsoft Windows |
MS11-084 | Vulnerability in Windows Kernel-Mode Drivers Could Allow Denial of Service (2617657) This security update resolves a privately reported vulnerability in Microsoft Windows. The vulnerability could allow denial of service if a user opens a specially crafted TrueType font file as an e-mail attachment or navigates to a network share or WebDAV location containing a specially crafted TrueType font file. For an attack to be successful, a user must visit the untrusted remote file system location or WebDAV share containing the specially crafted TrueType font file, or open the file as an e-mail attachment. In all cases, however, an attacker would have no way to force users to perform these actions. Instead, an attacker would have to persuade users to do so, typically by getting them to click a link in an e-mail message or Instant Messenger message. | Moderate Denial of Service | Requires restart | Microsoft Windows |
Exploitability Index
The
following table provides an exploitability assessment of each of the
vulnerabilities addressed this month. The vulnerabilities are listed in
order of bulletin ID then CVE ID. Only vulnerabilities that have a
severity rating of Critical or Important in the bulletins are included.
How do I use this table?
Use this table to learn about the likelihood of code execution and denial of service exploits within 30 days of security bulletin release, for each of the security updates that you may need to install. Review each of the assessments below, in accordance with your specific configuration, to prioritize your deployment of this month's updates. For more information about what these ratings mean, and how they are determined, please see Microsoft Exploitability Index.
In the columns below, "Latest Software Release" refers to the subject software, and "Older Software Releases" refers to all older, supported releases of the subject software, as listed in the "Affected Software" and "Non-Affected Software" tables in the bulletin.
How do I use this table?
Use this table to learn about the likelihood of code execution and denial of service exploits within 30 days of security bulletin release, for each of the security updates that you may need to install. Review each of the assessments below, in accordance with your specific configuration, to prioritize your deployment of this month's updates. For more information about what these ratings mean, and how they are determined, please see Microsoft Exploitability Index.
In the columns below, "Latest Software Release" refers to the subject software, and "Older Software Releases" refers to all older, supported releases of the subject software, as listed in the "Affected Software" and "Non-Affected Software" tables in the bulletin.
Bulletin ID | Vulnerability Title | CVE ID | Code Execution Exploitability Assessment for Latest Software Release | Code Execution Exploitability Assessment for Older Software Releases | Denial of Service Exploitability Assessment | Key Notes |
---|---|---|---|---|---|---|
MS11-083 | Reference Counter Overflow Vulnerability | CVE-2011-2013 | 2 - Inconsistent exploit code likely | 2 - Inconsistent exploit code likely | Permanent | (None) |
MS11-085 | Windows Mail Insecure Library Loading Vulnerability | CVE-2011-2016 | 1 - Consistent exploit code likely | 1 - Consistent exploit code likely | Not applicable | (None) |
MS11-086 | LDAPS Authentication Bypass Vulnerability | CVE-2011-2014 | 1 - Consistent exploit code likely | 1 - Consistent exploit code likely | Not applicable | (None) |
Affected Software and Download Locations
The following tables list the bulletins in order of major software category and severity.
How do I use these tables?
Use these tables to learn about the security updates that you may need to install. You should review each software program or component listed to see whether any security updates pertain to your installation. If a software program or component is listed, then the available software update is hyperlinked and the severity rating of the software update is also listed.
Note You may have to install several security updates for a single vulnerability. Review the whole column for each bulletin identifier that is listed to verify the updates that you have to install, based on the programs or components that you have installed on your system.
*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.
**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when 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.
***Server Core installation not affected. The vulnerability addressed by this update does not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when installed using the Server Core installation option, even though files affected by this vulnerability may be present on the system. However, users with the affected files will still be offered this update because the update files are newer (with higher version numbers) than the files that are currently on your system. 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.
How do I use these tables?
Use these tables to learn about the security updates that you may need to install. You should review each software program or component listed to see whether any security updates pertain to your installation. If a software program or component is listed, then the available software update is hyperlinked and the severity rating of the software update is also listed.
Note You may have to install several security updates for a single vulnerability. Review the whole column for each bulletin identifier that is listed to verify the updates that you have to install, based on the programs or components that you have installed on your system.
Windows Operating System and Components
*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.
**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when 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.
***Server Core installation not affected. The vulnerability addressed by this update does not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when installed using the Server Core installation option, even though files affected by this vulnerability may be present on the system. However, users with the affected files will still be offered this update because the update files are newer (with higher version numbers) than the files that are currently on your system. 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.
Detection and Deployment Tools and Guidance
Other Information
Microsoft Windows Malicious Software Removal Tool
Non-Security Updates on MU, WU, and WSUS
- Microsoft Knowledge Base Article 894199: Description of Software Update Services and Windows Server Update Services changes in content. Includes all Windows content.
- Updates from Past Months for Windows Server Update Services. Displays all new, revised, and rereleased updates for Microsoft products other than Microsoft Windows.
Microsoft Active Protections Program (MAPP)
Security Strategies and Community
Security Guidance for Update Management provides additional information about Microsoft’s best-practice recommendations for applying security updates.
Obtaining Other Security Updates
Updates for other security issues are available from the following locations:
- Security updates are available from Microsoft Download Center. You can find them most easily by doing a keyword search for "security update".
- Updates for consumer platforms are available from Microsoft Update.
- You can obtain the security updates offered this month on Windows Update, from Download Center on Security and Critical Releases ISO CD Image files. For more information, see Microsoft Knowledge Base Article 913086.
Learn to improve security and optimize your IT infrastructure, and participate with other IT Pros on security topics in IT Pro Security Community.
Acknowledgments
- Will Dorman of the CERT/CC for reporting an issue described in MS11-084
- Ivan Sanchez of EvilCode for reporting an issue described in MS11-085
- Xavier Lassoie and Sébastien Godard of Autosécurité for reporting an issue described in MS11-086
Support
- The affected software listed have been tested to determine which versions are affected. Other versions are past their support life cycle. To determine the support life cycle for your software version, visit Microsoft Support Lifecycle.
- Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY (1-866-727-2338). 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 International Help and Support.
Disclaimer
Revisions
- V1.0 (November 08, 2011): Bulletin Summary published.
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