Microsoft je objavio reviziju sigurnosnog upozorenja vezanog uz Microsoft Foundation Class (MFC) biblioteku. Izvorno upozorenje odnosilo se na propust koji je zlonamjernim korisnicima omogućavao pokretanje proizvoljnog programskog koda.

Microsoft Security Bulletin MS11-025 - Important
Vulnerability in Microsoft Foundation Class (MFC) Library Could Allow Remote Code Execution (2500212)
Published: April 12, 2011 | Updated: June 14, 2011

Version: 3.0
General Information
Executive Summary

This security update resolves a publicly disclosed vulnerability in certain applications built using the Microsoft Foundation Class (MFC) Library. The vulnerability could allow remote code execution if a user opens a legitimate file associated with such an affected application, and the file is located in the same network folder as a specially crafted library file. For an attack to be successful, a user must visit an untrusted remote file system location or WebDAV share and open a document from this location that is then loaded by the affected application.

This security update is rated Important for all supported editions of Microsoft Visual Studio and Microsoft Visual C++ Redistributable Package. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the manner in which applications built using MFC load external libraries. 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. Microsoft Knowledge Base Article 2500212 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.
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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

Microsoft Visual Studio .NET 2003 Service Pack 1
(KB2465373)
	

Remote Code Execution
	

Important
	

MS09-035

Microsoft Visual Studio 2005 Service Pack 1
(KB2538218)
	

Remote Code Execution
	

Important
	

MS09-035

Microsoft Visual Studio 2008 Service Pack 1
(KB2538241)
	

Remote Code Execution
	

Important
	

MS09-035

Microsoft Visual Studio 2010
(KB2542054)
	

Remote Code Execution
	

Important
	

None

Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package
(KB2538242)
	

Remote Code Execution
	

Important
	

MS09-035

Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package
(KB2538243)
	

Remote Code Execution
	

Important
	

MS09-035

Microsoft Visual C++ 2010 Redistributable Package
(KB2467173)
	

Remote Code Execution
	

Important
	

None
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Frequently Asked Questions (FAQ) Related to This Security Update

Why was this bulletin rereleased on June 14, 2011? 
Microsoft rereleased this bulletin to reoffer the update for Microsoft Visual Studio 2005 Service Pack 1, Microsoft Visual Studio 2008 Service Pack 1, Microsoft Visual Studio 2010, Microsoft Visual C++ 2005 Service Pack 1 Redistributable Package, and Microsoft Visual C++ 2008 Service Pack 1 Redistributable Package. This reoffered update replaces the previous update to address the following issues:
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