Microsoft Security Bulletin Summary for February 2011

Published: February 08, 2011 | Updated: February 09, 2011

Version: 1.1
This bulletin summary lists security bulletins released for February 2011.
With the release of the security bulletins for February 2011, this bulletin summary replaces the bulletin advance notification originally issued February 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 February 9, 2011, at 11:00 AM Pacific Time (US & Canada). Register now for the February 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.

Bulletin ID	Bulletin Title and Executive Summary	Maximum Severity Rating and Vulnerability Impact	Restart Requirement	Affected Software
MS11-003	Cumulative Security Update for Internet Explorer (2482017) This security update resolves two privately reported vulnerabilities and two publicly disclosed vulnerabilities in Internet Explorer. The vulnerabilities could allow remote code execution if a user views a specially crafted Web page using Internet Explorer or if a user opens a legitimate HTML file that loads a specially crafted library file. An attacker who successfully exploited any of these vulnerabilities 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.	Critical Remote Code Execution	Requires restart	Microsoft Windows, Internet Explorer
MS11-006	Vulnerability in Windows Shell Graphics Processing Could Allow Remote Code Execution (2483185) This security update resolves a publicly disclosed vulnerability in the Windows Shell graphics processor. The vulnerability could allow remote code execution if a user views a specially crafted thumbnail image. An attacker who successfully exploited this vulnerability 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.	Critical Remote Code Execution	Requires restart	Microsoft Windows
MS11-007	Vulnerability in the OpenType Compact Font Format (CFF) Driver Could Allow Remote Code Execution (2485376) This security update resolves a privately reported vulnerability in the Windows OpenType Compact Font Format (CFF) driver. The vulnerability could allow remote code execution if a user views content rendered in a specially crafted CFF font. In all cases, an attacker would have no way to force users to view the specially crafted content. Instead, an attacker would have to convince users to visit a Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker's Web site.	Critical Remote Code Execution	Requires restart	Microsoft Windows
MS11-004	Vulnerability in Internet Information Services (IIS) FTP Service Could Allow Remote Code Execution (2489256) This security update resolves a publicly disclosed vulnerability in Microsoft Internet Information Services (IIS) FTP Service. The vulnerability could allow remote code execution if an FTP server receives a specially crafted FTP command. FTP Service is not installed by default on IIS.	Important Remote Code Execution	May require restart	Microsoft Windows
MS11-005	Vulnerability in Active Directory Could Allow Denial of Service (2478953) This security update resolves a publicly disclosed vulnerability in Active Directory. The vulnerability could allow denial of service if an attacker sent a specially crafted packet to an affected Active Directory server. The attacker must have valid local administrator privileges on the domain-joined computer in order to exploit this vulnerability.	Important Denial of Service	Requires restart	Microsoft Windows
MS11-008	Vulnerabilities in Microsoft Visio Could Allow Remote Code Execution (2451879) This security update resolves two privately reported vulnerabilities in Microsoft Visio. The vulnerabilities could allow remote code execution if a user opens a specially crafted Visio 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.	Important Remote Code Execution	May require restart	Microsoft Office
MS11-009	Vulnerability in JScript and VBScript Scripting Engines Could Allow Information Disclosure (2475792) This security update resolves a privately reported vulnerability in the JScript and VBScript scripting engines. The vulnerability could allow information disclosure if a user visited a specially crafted Web site. An attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker's Web site.	Important Information Disclosure	May require restart	Microsoft Windows
MS11-010	Vulnerability in Windows Client/Server Run-time Subsystem Could Allow Elevation of Privilege (2476687) This security update resolves a privately reported vulnerability in the Microsoft Windows Client/Server Run-time Subsystem (CSRSS) in Windows XP and Windows Server 2003. The vulnerability could allow elevation of privilege if an attacker logs on to a user's system and starts a specially crafted application that continues running after the attacker logs off in order to obtain the logon credentials of subsequent users. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.	Important Elevation of Privilege	Requires restart	Microsoft Windows
MS11-011	Vulnerabilities in Windows Kernel Could Allow Elevation of Privilege (2393802) This security update resolves one publicly disclosed vulnerability and one privately reported vulnerability in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logged on locally and ran a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit these vulnerabilities. The vulnerabilities could not be exploited remotely or by anonymous users.	Important Elevation of Privilege	Requires restart	Microsoft Windows
MS11-012	Vulnerabilities in Windows Kernel-Mode Drivers Could Allow Elevation of Privilege (2479628) This security update resolves five privately reported vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logged on locally and ran a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit these vulnerabilities. The vulnerabilities could not be exploited remotely or by anonymous users.	Important Elevation of Privilege	Requires restart	Microsoft Windows
MS11-013	Vulnerabilities in Kerberos Could Allow Elevation of Privilege (2496930) This security update resolves one privately reported vulnerability and one publicly disclosed vulnerability in Microsoft Windows. The more severe of these vulnerabilities could allow elevation of privilege if a local, authenticated attacker installs a malicious service on a domain-joined computer.	Important Elevation of Privilege	Requires restart	Microsoft Windows
MS11-014	Vulnerability in Local Security Authority Subsystem Service Could Allow Local Elevation of Privilege (2478960) This security update resolves a privately reported vulnerability in the Local Security Authority Subsystem Service (LSASS) in Windows XP and Windows Server 2003. The vulnerability could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit this vulnerability. The vulnerability could not be exploited remotely or by anonymous users.	Important Elevation of Privilege	Requires restart	Microsoft Windows

Top of section

Exploitability Index

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 functioning exploit code being released within 30 days of security bulletin release, for each of the security updates that you may need to install. You should review each of the assessments below, in accordance with your specific configuration, in order to prioritize your deployment. For more information about what these ratings mean, and how they are determined, please see Microsoft Exploitability Index.

Bulletin ID	Vulnerability Title	CVE ID	Exploitability Index Assessment	Key Notes
MS11-006	Windows Shell Graphics Processing Overrun Vulnerability	CVE-2010-3970	1 - Consistent exploit code likely	This vulnerability has been disclosed publicly and exploit code is available
MS11-003	CSS Memory Corruption Vulnerability	CVE-2010-3971	1 - Consistent exploit code likely	This vulnerability has been disclosed publicly and is being exploited in the Internet ecosystem
MS11-011	Driver Improper Interaction with Windows Kernel Vulnerability	CVE-2010-4398	1 - Consistent exploit code likely	This vulnerability has been disclosed publicly
MS11-010	CSRSS Elevation of Privilege Vulnerability	CVE-2011-0030	1 - Consistent exploit code likely	(None)
MS11-003	Uninitialized Memory Corruption Vulnerability	CVE-2011-0035	1 - Consistent exploit code likely	(None)
MS11-003	Uninitialized Memory Corruption Vulnerability	CVE-2011-0036	1 - Consistent exploit code likely	(None)
MS11-014	LSASS Length Validation Vulnerability	CVE-2011-0039	1 - Consistent exploit code likely	(None)
MS11-013	Kerberos Unkeyed Checksum Vulnerability	CVE-2011-0043	1 - Consistent exploit code likely	This vulnerability has been disclosed publicly
MS11-011	Windows Kernel Integer Truncation Vulnerability	CVE-2011-0045	1 - Consistent exploit code likely	(None)
MS11-012	Win32k Improper User Input Validation Vulnerability	CVE-2011-0086	1 - Consistent exploit code likely	(None)
MS11-012	Win32k Insufficient User Input Validation Vulnerability	CVE-2011-0087	1 - Consistent exploit code likely	(None)
MS11-012	Win32k Window Class Pointer Confusion Vulnerability	CVE-2011-0088	1 - Consistent exploit code likely	(None)
MS11-012	Win32k Window Class Improper Pointer Validation Vulnerability	CVE-2011-0089	1 - Consistent exploit code likely	(None)
MS11-012	Win32k Memory Corruption Vulnerability	CVE-2011-0090	1 - Consistent exploit code likely	(None)
MS11-008	Visio Object Memory Corruption Vulnerability	CVE-2011-0092	1 - Consistent exploit code likely	(None)
MS11-008	Visio Data Type Memory Corruption Vulnerability	CVE-2011-0093	1 - Consistent exploit code likely	(None)
MS11-004	IIS FTP Service Heap Buffer Overrun Vulnerability	CVE-2010-3972	2 - Inconsistent exploit code likely	This vulnerability has been disclosed publicly, and PoC code may be available
MS11-007	OpenType Font Encoded Character Vulnerability	CVE-2011-0033	2 - Inconsistent exploit code likely	(None)
MS11-009	Scripting Engines Information Disclosure Vulnerability	CVE-2011-0031	3 – Functioning exploit code unlikely	This is an information disclosure vulnerability
MS11-005	Active Directory SPN Validation Vulnerability	CVE-2011-0040	3 – Functioning exploit code unlikely	This vulnerability has been disclosed publicly This is a denial of service vulnerability
MS11-013	Kerberos Spoofing Vulnerability	CVE-2011-0091	3 – Functioning exploit code unlikely	This is a spoofing vulnerability only

Top of section

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.

Windows Operating System and Components

Windows XP
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Critical	Critical	Important	None	None	None	Important	Important	Important	Important	Important
Windows XP Service Pack 3	Internet Explorer 6 (Critical) Internet Explorer 7 (Critical) Internet Explorer 8 (Critical)	Windows XP Service Pack 3 (Critical)	Windows XP Service Pack 3 (Important)	Not applicable	Not applicable	Not applicable	Windows XP Service Pack 3 (Important)	Windows XP Service Pack 3 (Important)	Windows XP Service Pack 3 (Important)	Windows XP Service Pack 3 (KB2478971) (Important)	Windows XP Service Pack 3 (Important)
Windows XP Professional x64 Edition Service Pack 2	Internet Explorer 6 (Critical) Internet Explorer 7 (Critical) Internet Explorer 8 (Critical)	Windows XP Professional x64 Edition Service Pack 2 (Critical)	Windows XP Professional x64 Edition Service Pack 2 (Important)	Not applicable	Not applicable	Not applicable	Windows XP Professional x64 Edition Service Pack 2 (Important)	Windows XP Professional x64 Edition Service Pack 2 (Important)	Windows XP Professional x64 Edition Service Pack 2 (Important)	Windows XP Professional x64 Edition Service Pack 2 (KB2478971) (Important)	Windows XP Professional x64 Edition Service Pack 2 (Important)
Windows Server 2003
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Moderate	Critical	Important	None	Important	None	Important	Important	Important	Important	Important
Windows Server 2003 Service Pack 2	Internet Explorer 6 (Moderate) Internet Explorer 7 (Moderate) Internet Explorer 8 (Moderate)	Windows Server 2003 Service Pack 2 (Critical)	Windows Server 2003 Service Pack 2 (Important)	Not applicable	Active Directory (Important)	Not applicable	Windows Server 2003 Service Pack 2 (Important)	Windows Server 2003 Service Pack 2 (Important)	Windows Server 2003 Service Pack 2 (Important)	Windows Server 2003 Service Pack 2 (KB2478971) (Important)	Windows Server 2003 Service Pack 2 (Important)
Windows Server 2003 x64 Edition Service Pack 2	Internet Explorer 6 (Moderate) Internet Explorer 7 (Moderate) Internet Explorer 8 (Moderate)	Windows Server 2003 x64 Edition Service Pack 2 (Critical)	Windows Server 2003 x64 Edition Service Pack 2 (Important)	Not applicable	Active Directory (Important)	Not applicable	Windows Server 2003 x64 Edition Service Pack 2 (Important)	Windows Server 2003 x64 Edition Service Pack 2 (Important)	Windows Server 2003 x64 Edition Service Pack 2 (Important)	Windows Server 2003 x64 Edition Service Pack 2 (KB2478971) (Important)	Windows Server 2003 x64 Edition Service Pack 2 (Important)
Windows Server 2003 with SP2 for Itanium-based Systems	Internet Explorer 6 (Moderate) Internet Explorer 7 (Moderate)	Windows Server 2003 with SP2 for Itanium-based Systems (Critical)	Windows Server 2003 with SP2 for Itanium-based Systems (Important)	Not applicable	Active Directory (Important)	Not applicable	Windows Server 2003 with SP2 for Itanium-based Systems (Important)	Windows Server 2003 with SP2 for Itanium-based Systems (Important)	Windows Server 2003 with SP2 for Itanium-based Systems (Important)	Windows Server 2003 with SP2 for Itanium-based Systems (KB2478971) (Important)	Windows Server 2003 with SP2 for Itanium-based Systems (Important)
Windows Vista
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Critical	Critical	Critical	Important	None	None	None	Important	Important	None	None
Windows Vista Service Pack 1 and Windows Vista Service Pack 2	Internet Explorer 7 (Critical) Internet Explorer 8 (Critical)	Windows Vista Service Pack 1 and Windows Vista Service Pack 2 (Critical)	Windows Vista Service Pack 1 and Windows Vista Service Pack 2 (Critical)	Microsoft FTP Service 7.0 for IIS 7.0[1] (Important) Microsoft FTP Service 7.5 for IIS 7.0[1] (Important)	Not applicable	Not applicable	Not applicable	Windows Vista Service Pack 1 and Windows Vista Service Pack 2 (Important)	Windows Vista Service Pack 1 and Windows Vista Service Pack 2 (Important)	Not applicable	Not applicable
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2	Internet Explorer 7 (Critical) Internet Explorer 8 (Critical)	Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 (Critical)	Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 (Critical)	Microsoft FTP Service 7.0 for IIS 7.0[1] (Important) Microsoft FTP Service 7.5 for IIS 7.0[1] (Important)	Not applicable	Not applicable	Not applicable	Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 (Important)	Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2 (Important)	Not applicable	Not applicable
Windows Server 2008
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Moderate	Critical	Critical	Important	None	None	None	Important	Important	None	None
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2	Internet Explorer 7** (Moderate) Internet Explorer 8** (Moderate)	Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2** (Critical)	Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* (Critical)	Microsoft FTP Service 7.0 for IIS 7.0[1]* (Important) Microsoft FTP Service 7.5 for IIS 7.0[1]* (Important)	Not applicable	Not applicable	Not applicable	Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* (Important)	Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2* (Important)	Not applicable	Not applicable
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2	Internet Explorer 7** (Moderate) Internet Explorer 8** (Moderate)	Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2** (Critical)	Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* (Critical)	Microsoft FTP Service 7.0 for IIS 7.0[1]* (Important) Microsoft FTP Service 7.5 for IIS 7.0[1]* (Important)	Not applicable	Not applicable	Not applicable	Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* (Important)	Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2* (Important)	Not applicable	Not applicable
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2	Internet Explorer 7 (Moderate)	Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 (Critical)	Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 (Critical)	Not applicable	Not applicable	Not applicable	Not applicable	Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 (Important)	Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2 (Important)	Not applicable	Not applicable
Windows 7
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Critical	None	Critical	Important	None	Important	None	Important	Important	Important	None
Windows 7 for 32-bit Systems	Internet Explorer 8 (Critical)	Not applicable	Windows 7 for 32-bit Systems (Critical)	Microsoft FTP Service 7.5 for IIS 7.5 (Important)	Not applicable	JScript 5.8 (Important) VBScript 5.8 (Important)	Not applicable	Windows 7 for 32-bit Systems (Important)	Windows 7 for 32-bit Systems (Important)	Windows 7 for 32-bit Systems (KB2425227) (Important)	Not applicable
Windows 7 for x64-based Systems	Internet Explorer 8 (Critical)	Not applicable	Windows 7 for x64-based Systems (Critical)	Microsoft FTP Service 7.5 for IIS 7.5 (Important)	Not applicable	JScript 5.8 (Important) VBScript 5.8 (Important)	Not applicable	Windows 7 for x64-based Systems (Important)	Windows 7 for x64-based Systems (Important)	Windows 7 for x64-based Systems (KB2425227) (Important)	Not applicable
Windows Server 2008 R2
Bulletin Identifier	MS11-003	MS11-006	MS11-007	MS11-004	MS11-005	MS11-009	MS11-010	MS11-011	MS11-012	MS11-013	MS11-014
Aggregate Severity Rating	Moderate	None	Critical	Important	None	Moderate	None	Important	Important	Important	None
Windows Server 2008 R2 for x64-based Systems	Internet Explorer 8** (Moderate)	Not applicable	Windows Server 2008 R2 for x64-based Systems* (Critical)	Microsoft FTP Service 7.5 for IIS 7.5* (Important)	Not applicable	JScript 5.8** (Moderate) VBScript 5.8** (Moderate)	Not applicable	Windows Server 2008 R2 for x64-based Systems* (Important)	Windows Server 2008 R2 for x64-based Systems* (Important)	Windows Server 2008 R2 for x64-based Systems* (KB2425227) (Important)	Not applicable
Windows Server 2008 R2 for Itanium-based Systems	Internet Explorer 8 (Moderate)	Not applicable	Windows Server 2008 R2 for Itanium-based Systems (Critical)	Microsoft FTP Service 7.5 for IIS 7.5 (Important)	Not applicable	JScript 5.8 (Moderate) VBScript 5.8 (Moderate)	Not applicable	Windows Server 2008 R2 for Itanium-based Systems (Important)	Windows Server 2008 R2 for Itanium-based Systems (Important)	Windows Server 2008 R2 for Itanium-based Systems (KB2425227) (Important)	Not applicable

Notes 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.
**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.
Note for MS11-004
^[1]Not the default FTP Service for this operating system

Top of section

Microsoft Office Suites and Software

Microsoft Office Programs
Bulletin Identifier	MS11-008
Aggregate Severity Rating	Important
Microsoft Visio 2002 Service Pack 2	Microsoft Visio 2002 Service Pack 2 (KB2434711) (Important)
Microsoft Visio 2003 Service Pack 3	Microsoft Visio 2003 Service Pack 3 (KB2434733) (Important)
Microsoft Visio 2007 Service Pack 2	Microsoft Visio 2007 Service Pack 2 (KB2434737) (Important)

Top of section

Top of section

Detection and Deployment Tools and Guidance

Security Central
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.

Top of section

Other Information

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.

Top of section

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.

Top of section

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.

Top of section

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.

Top of section

Acknowledgments

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

•	Yuki Chen of Trend Micro for reporting an issue described in MS11-003
•	SkyLined of Google Inc. for reporting an issue described in MS11-003
•	Haifei Li of Fortinet’s FortiGuard Labs for reporting an issue described in MS11-003
•	Kobi Pariente and Yaniv Miron, working with VeriSign iDefense Labs, for reporting an issue described in MS11-006
•	Procyun, working with TippingPoint's Zero Day Initiative, for reporting an issue described in MS11-008
•	Xin Ouyang of Palo Alto Networks for reporting two issues described in MS11-008
•	Yamata Li of Palo Alto Networks for reporting an issue described in MS11-009
•	Sihan Qing (Professor), Weiping Wen (Associate Professor), Liang Yi and Husheng Zhou (Graduate students), Department of Information Security, Beijing University, for reporting an issue described in MS11-010
•	Zhengwenbin of 360safe for reporting an issue described in MS11-011
•	Guo Bojun for reporting an issue described in MS11-011
•	Wei Zhang for reporting an issue described in MS11-011
•	Marco Giuliani of Prevx for working with us on an issue described in MS11-011
•	std_logic, working with TippingPoint's Zero Day Initiative, for reporting an issue described in MS11-011
•	Tarjei Mandt of Norman for reporting five issues described in MS11-012
•	The MIT Kerberos Team for reporting an issue described in MS11-013
•	Scott Stender of iSEC Partners for reporting an issue described in MS11-013
•	Security tester Jorge Moura of Primavera BSS for reporting an issue described in MS11-014

Top of section

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. 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.

Top of section

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.

Top of section

Revisions

•	V1.0 (February 8, 2011): Bulletin Summary published.
•	V1.1 (February 9, 2011): For MS11-013, corrected the Exploitability Index Assessment for CVE-2011-0091 to "3 – Functioning exploit code unlikely." This is an informational change only. - wong chee tat :)