Izdana je revizija izvorne preporuke s oznakom MS11-046, prvotno objavljene 14. lipnja 2011. Izvorna se preporuka odnosi na operacijske sustave Microsoft Windows, a lokalni napadač ranjivost može iskoristiti za dobivanje većih privilegija u sustavu.

Microsoft Security Bulletin MS11-046 - Important
Vulnerability in Ancillary Function Driver Could Allow Elevation of Privilege (2503665)
Published: June 14, 2011 | Updated: June 30, 2011

Version: 1.1
General Information
Executive Summary

This security update resolves a publicly disclosed vulnerability in the Microsoft Windows Ancillary Function Driver (AFD). The vulnerability could allow elevation of privilege if an attacker logs on to a user's system and runs a specially crafted application. An attacker must have valid logon credentials and be able to log on locally to exploit the vulnerability.

This security update is rated Important for all supported versions of Microsoft Windows. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the way that AFD validates input before passing the input from user mode to the Windows kernel. 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. 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 at the earliest opportunity 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
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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 System	Maximum Security Impact	Aggregate Severity Rating	Bulletins Replaced by this Update

Windows XP Service Pack 3
	

Elevation of Privilege
	

Important
	

MS08-066

Windows XP Professional x64 Edition Service Pack 2
	

Elevation of Privilege
	

Important
	

MS08-066

Windows Server 2003 Service Pack 2
	

Elevation of Privilege
	

Important
	

MS08-066

Windows Server 2003 x64 Edition Service Pack 2
	

Elevation of Privilege
	

Important
	

MS08-066

Windows Server 2003 with SP2 for Itanium-based Systems
	

Elevation of Privilege
	

Important
	

MS08-066

Windows Vista Service Pack 1 and Windows Vista Service Pack 2
	

Elevation of Privilege
	

Important
	

None

Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2
	

Elevation of Privilege
	

Important
	

None

Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2*
	

Elevation of Privilege
	

Important
	

None

Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2*
	

Elevation of Privilege
	

Important
	

None

Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2
	

Elevation of Privilege
	

Important
	

None

Windows 7 for 32-bit Systems
	

Elevation of Privilege
	

Important
	

MS10-058

Windows 7 for 32-bit Systems Service Pack 1
	

Elevation of Privilege
	

Important
	

None

Windows 7 for x64-based Systems
	

Elevation of Privilege
	

Important
	

MS10-058

Windows 7 for x64-based Systems Service Pack 1
	

Elevation of Privilege
	

Important
	

None

Windows Server 2008 R2 for x64-based Systems*
	

Elevation of Privilege
	

Important
	

MS10-058

Windows Server 2008 R2 for x64-based Systems Service Pack 1*
	

Elevation of Privilege
	

Important
	

None

Windows Server 2008 R2 for Itanium-based Systems
	

Elevation of Privilege
	

Important
	

MS10-058

Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
	

Elevation of Privilege
	

Important
	

None

*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.
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Frequently Asked Questions (FAQ) Related to This Security Update
Vulnerability Information
	
Severity Ratings and Vulnerability Identifiers
	
Ancillary Function Driver Elevation of Privilege Vulnerability - CVE-2011-1249
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:
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