Microsoft Security Bulletin Summary for May 2011
Published: May 10, 2011 | Updated: June 14, 2011
This bulletin summary lists security bulletins released for May 2011.
With the release of the security bulletins for May 2011, this bulletin summary replaces the bulletin advance notification originally issued May 5, 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 May 11, 2011, at 11:00 AM Pacific Time (US & Canada). Register now for the May 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.
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.
|Bulletin ID||Bulletin Title and Executive Summary||Maximum Severity Rating and Vulnerability Impact||Restart Requirement||Affected Software|
Vulnerability in WINS Could Allow Remote Code Execution (2524426) |
This security update resolves a privately reported vulnerability in the Windows Internet Name Service (WINS). The vulnerability could allow remote code execution if a user received a specially crafted WINS replication packet on an affected system running the WINS service. By default, WINS is not installed on any affected operating system. Only customers who manually installed this component are affected by this issue.
Remote Code Execution
|May require restart||Microsoft Windows|
Vulnerabilities in Microsoft PowerPoint Could Allow Remote Code Execution (2545814) |
This security update resolves two privately reported vulnerabilities in Microsoft PowerPoint. The vulnerabilities could allow remote code execution if a user opens a specially crafted PowerPoint file. An attacker who successfully exploited either of these vulnerabilities could gain the same user rights as the logged-on 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. Installing and configuring Office File Validation (OFV) to prevent the opening of suspicious files blocks the attack vectors for exploiting the vulnerabilities described in CVE-2011-1269 and CVE-2011-1270.
Remote Code Execution
|May require restart||Microsoft Office|
The following table provides an exploitability assessment of each of the vulnerabilities addressed this month. The vulnerabilities are listed in order of decreasing exploitability assessment level 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.
|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|
|MS11-036||Presentation Memory Corruption RCE Vulnerability||CVE-2011-1269||Not affected||1 - Consistent exploit code likely||Not applicable||(None)|
|MS11-035||WINS Service Failed Response Vulnerability||CVE-2011-1248||2 – Inconsistent exploit code likely||2 – Inconsistent exploit code likely||Temporary||(None)|
|MS11-036||Presentation Buffer Overrun RCE Vulnerability||CVE-2011-1270||Not affected||3 – Functioning exploit code unlikely||Not applicable||(None)|
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.
Windows Operating System and Components
|Windows Server 2003|
|Aggregate Severity Rating||Critical|
|Windows Server 2003 Service Pack 2||
Windows Server 2003 Service Pack 2
|Windows Server 2003 x64 Edition Service Pack 2||
Windows Server 2003 x64 Edition Service Pack 2
|Windows Server 2003 with SP2 for Itanium-based Systems||
Windows Server 2003 with SP2 for Itanium-based Systems
|Windows Server 2008|
|Aggregate Severity Rating||Critical|
|Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2||
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2*|
|Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2||
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2*|
|Windows Server 2008 R2|
|Aggregate Severity Rating||Critical|
|Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1||
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1*|
Note for Windows Server 2008 and Windows Server 2008 R2
*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.
Microsoft Office Suites and Software
|Microsoft Office Suites and Components|
|Aggregate Severity Rating||Important|
|Microsoft Office XP Service Pack 3||
Microsoft PowerPoint 2002 Service Pack 3
|Microsoft Office 2003 Service Pack 3||
Microsoft PowerPoint 2003 Service Pack 3
|Microsoft Office 2007 Service Pack 2||
Microsoft PowerPoint 2007 Service Pack 2
|Microsoft Office for Mac|
|Aggregate Severity Rating||Important|
|Microsoft Office 2004 for Mac||Microsoft Office 2004 for Mac|
|Microsoft Office 2008 for Mac||Microsoft Office 2008 for Mac|
|Open XML File Format Converter for Mac||Open XML File Format Converter for Mac|
|Other Office Software|
|Aggregate Severity Rating||Important|
|Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2||
Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2
Note for MS11-036
The security updates for Microsoft Office 2004 for Mac (KB2555786), Microsoft Office 2008 for Mac (KB2555785), and Open XML File Format Converter for Mac (KB2555787) are available as of June 14, 2011. See bulletin for details.
Manage the software and security updates you need to deploy to the servers, desktop, and mobile computers in your organization. For more information see the TechNet Update Management Center. The TechNet Security Center provides additional information about security in Microsoft products. Consumers can visit Security At Home, where this information is also available by clicking "Latest Security Updates".
Security updates are available from Microsoft Update and Windows Update. Security updates are also available at the Microsoft Download Center. You can find them most easily by doing a keyword search for "security update".
For customers of Microsoft Office for Mac, Microsoft AutoUpdate for Mac can help keep your Microsoft software up to date. For more information about using Microsoft AutoUpdate for Mac, see Check for software updates automatically.
Finally, security updates can be downloaded from the Microsoft Update Catalog. The Microsoft Update Catalog provides a searchable catalog of content made available through Windows Update and Microsoft Update, including security updates, drivers and service packs. By searching using the security bulletin number (such as, "MS07-036"), you can add all of the applicable updates to your basket (including different languages for an update), and download to the folder of your choosing. For more information about the Microsoft Update Catalog, see the Microsoft Update Catalog FAQ.
Detection and Deployment Guidance
Microsoft provides detection and deployment guidance for security updates. This guidance contains recommendations and information that can help IT professionals understand how to use various tools for detection and deployment of security updates. For more information, see Microsoft Knowledge Base Article 961747.
Microsoft Baseline Security Analyzer
The Microsoft Baseline Security Analyzer (MBSA) allows administrators to scan local and remote systems for missing security updates as well as common security misconfigurations. For more information about MBSA, visit Microsoft Baseline Security Analyzer.
Windows Server Update Services
By using Windows Server Update Services (WSUS), administrators can quickly and reliably deploy the latest critical updates and security updates for Microsoft Windows 2000 operating systems and later, Office XP and later, Exchange Server 2003, and SQL Server 2000 to Microsoft Windows 2000 and later operating systems.
For more information about how to deploy this security update using Windows Server Update Services, visit Windows Server Update Services.
System Center Configuration Manager 2007
Configuration Manager 2007 Software Update Management simplifies the complex task of delivering and managing updates to IT systems across the enterprise. With Configuration Manager 2007, IT administrators can deliver updates of Microsoft products to a variety of devices including desktops, laptops, servers, and mobile devices.
The automated vulnerability assessment in Configuration Manager 2007 discovers needs for updates and reports on recommended actions. The Software Update Management in Configuration Manager 2007 is built on Microsoft Windows Software Update Services (WSUS), a time-tested update infrastructure that is familiar to IT administrators worldwide. For more information about how administrators can use Configuration Manager 2007 to deploy updates, see Software Update Management. For more information about Configuration Manager, visit System Center Configuration Manager.
Systems Management Server 2003
Microsoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and to perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users.
Note System Management Server 2003 is out of mainstream support as of January 12, 2010. For more information on product lifecycles, visit Microsoft Support Lifecycle. The next release of SMS, System Center Configuration Manager 2007, is now available; see the earlier section, System Center Configuration Manager 2007.
For more information about how administrators can use SMS 2003 to deploy security updates, see Scenarios and Procedures for Microsoft Systems Management Server 2003: Software Distribution and Patch Management. For information about SMS, visit the Microsoft Systems Management Server TechCenter.
Note SMS uses the Microsoft Baseline Security Analyzer to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of SMS in these cases to target updates to specific systems. For more information about this procedure, see Deploying Software Updates Using the SMS Software Distribution Feature. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack) to install these updates.
Update Compatibility Evaluator and Application Compatibility Toolkit
Updates often write to the same files and registry settings required for your applications to run. This can trigger incompatibilities and increase the time it takes to deploy security updates. You can streamline testing and validating Windows updates against installed applications with the Update Compatibility Evaluator components included with Application Compatibility Toolkit.
The Application Compatibility Toolkit (ACT) contains the necessary tools and documentation to evaluate and mitigate application compatibility issues before deploying Microsoft Windows Vista, a Windows Update, a Microsoft Security Update, or a new version of Windows Internet Explorer in your environment.
Microsoft Windows Malicious Software Removal Tool
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.
Non-Security Updates on MU, WU, and WSUS
For information about non-security releases on Windows Update and Microsoft Update, please see:
- 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)
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.
Security Strategies and Community
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:
- 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.
IT Pro Security Community
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:
- Luigi Auriemma, working with TippingPoint's Zero Day Initiative, for reporting an issue described in MS11-035
- Will Dormann of CERT/CC for working with us on two issues described in MS11-036
- 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. 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.
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 (May 10, 2011): Bulletin Summary published.
- V1.1 (May 17, 2011): For MS11-036, removed an erroneous note from the Affected Software table pertaining to security updates KB2535818 and KB2540162 for Microsoft PowerPoint 2007 Service Pack 2.
- V1.2 (June 14, 2011): For MS11-036, revised this Bulletin Summary to announce that the security updates for Microsoft Office 2004 for Mac (KB2555786), Microsoft Office 2008 for Mac (KB2555785), and Open XML File Format Converter for Mac (KB2555787) are available. See MS11-036 for details.
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