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HistorySep 10, 2008 - 12:00 a.m.

Microsoft Security Bulletin MS08-052 – Critical Vulnerabilities in GDI+ Could Allow Remote Code Execution (954593)

2008-09-1000:00:00

vulners.com

Microsoft Security Bulletin MS08-052 – Critical
Vulnerabilities in GDI+ Could Allow Remote Code Execution (954593)
Published: September 9, 2008

Version: 1.0
General Information
Executive Summary

This security update resolves several privately reported vulnerabilities in Microsoft Windows GDI+. These vulnerabilities could allow remote code execution if a user viewed a specially crafted image file using affected software or browsed a Web site that contains specially crafted content. 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.

This security update is rated Critical for all supported editions of Windows XP, Windows Server 2003, Windows Vista, and Windows Server 2008, Microsoft Internet Explorer 6 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4, Microsoft Digital Image Suite 2006, SQL Server 2000 Reporting Services Service Pack 2, all supported editions of SQL Server 2005, Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package, and Microsoft Report Viewer 2008 Redistributable Package.

This security update is rated Important for all supported editions of Microsoft Office XP, Microsoft Office 2003, 2007 Microsoft Office System, Microsoft Visio 2002, Microsoft Office PowerPoint Viewer 2003, Microsoft Works 8, and Microsoft Forefront Client Security 1.0. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerabilities by modifying the way that GDI+ handles viewing malformed images. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Microsoft recommends that customers apply the update immediately.

Known Issues. Microsoft Knowledge Base Article 954593 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.

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

Windows Operating System and Components
Operating System Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Operating Systems

Windows XP Service Pack 2 and Windows XP Service Pack 3

Not applicable

Remote Code Execution

Critical

None

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2

Not applicable

Remote Code Execution

Critical

None

Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2

Not applicable

Remote Code Execution

Critical

None

Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2

Not applicable

Remote Code Execution

Critical

None

Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems

Not applicable

Remote Code Execution

Critical

None

Windows Vista and Windows Vista Service Pack 1

Not applicable

Remote Code Execution

Critical

None

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

Not applicable

Remote Code Execution

Critical

None

Windows Server 2008 for 32-bit Systems*

Not applicable

Remote Code Execution

Critical

None

Windows Server 2008 for x64-based Systems*

Not applicable

Remote Code Execution

Critical

None

Windows Server 2008 for Itanium-based Systems

Not applicable

Remote Code Execution

Critical

None
Internet Explorer 6

Microsoft Windows 2000 Service Pack 4

Microsoft Internet Explorer 6 Service Pack 1
(KB938464)

Remote Code Execution

Critical

MS07-050
Microsoft .NET Framework

Microsoft Windows 2000 Service Pack 4

Microsoft .NET Framework 1.0 Service Pack 3
(KB947739)

Microsoft .NET Framework 1.1 Service Pack 1
(KB947742)

Microsoft .NET Framework 2.0
(KB947746)

Microsoft .NET Framework 2.0 Service Pack 1
(KB947748)

None

*Windows Server 2008 Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 if Windows Server 2008 was installed using the Server Core installation option, even though the files affected by these vulnerabilities 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 Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.

Microsoft Office
Office Suite and Other Software Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Microsoft Office Suites

Microsoft Office XP Service Pack 3
(KB953405)

Remote Code Execution

Important

MS04-028

Microsoft Office 2003 Service Pack 2
(KB954478)

Remote Code Execution

Important

None

Microsoft Office 2003 Service Pack 3
(KB954478)

Remote Code Execution

Important

None

2007 Microsoft Office System
(KB954326)

Remote Code Execution

Important

None

2007 Microsoft Office System Service Pack 1
(KB954326)

Remote Code Execution

Important

None
Other Office Software

Microsoft Visio 2002 Service Pack 2
(KB954479)

Remote Code Execution

Important

MS08-019

Microsoft Office PowerPoint Viewer 2003
(KB956500)

Remote Code Execution

Important

MS08-051

Microsoft Works 8
(KB956483)

Remote Code Execution

Important

MS08-044

Microsoft Digital Image Suite 2006
(KB955992)

Remote Code Execution

Critical

None

Note Office Communicator 2005 and Office Communicator 2007 distribute a copy of gdiplus.dll that contains the affected code. However, Microsoft's analysis has shown that there are no reliable attack vectors exposed in these products.

Microsoft SQL Server

Depending on your software version or edition, you may need to choose between GDR and QFE software update links below in order to manually install your update from the Microsoft Download Center. For more information on determining which update to install on your system, see the Frequently Asked Questions (FAQ) Related to This Security Update subsection, in this section.
GDR Software Updates QFE Software Updates Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update

Not applicable

SQL Server 2000 Reporting Services Service Pack 2
(KB954609)

Remote Code Execution

Critical

None

SQL Server 2005 Service Pack 2
(KB954606)

SQL Server 2005 Service Pack 2
(KB954607)

Remote Code Execution

Critical

MS08-040

SQL Server 2005 x64 Edition Service Pack 2
(KB954606)

SQL Server 2005 x64 Edition Service Pack 2
(KB954607)

Remote Code Execution

Critical

MS08-040

SQL Server 2005 for Itanium-based Systems Service Pack 2
(KB954606)

SQL Server 2005 for Itanium-based Systems Service Pack 2
(KB954607)

Remote Code Execution

Critical

MS08-040

Developer Tools
Software Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update

Microsoft Visual Studio .NET 2002 Service Pack 1
(KB947736)

None

Microsoft Visual Studio .NET 2003 Service Pack 1
(KB947737)

None

Microsoft Visual Studio 2005 Service Pack 1
(KB947738)

None

Microsoft Visual Studio 2008
(KB952241)

None

Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package
(KB954765)

Remote Code Execution

Critical

None

Microsoft Report Viewer 2008 Redistributable Package
(KB954766)

Remote Code Execution

Critical

None

Microsoft Visual FoxPro 8.0 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4
(KB955368)

None

Microsoft Visual FoxPro 9.0 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4
(KB955369)

None

Microsoft Visual FoxPro 9.0 Service Pack 2 when installed on Microsoft Windows 2000 Service Pack 4
(KB955370)

None

Microsoft Platform SDK Redistributable: GDI+

None

MS04-028

Security Software
Software Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update

Microsoft Forefront Client Security 1.0 when installed on Microsoft Windows 2000 Service Pack 4
(KB957177)

Remote Code Execution

Important

None

Non-Affected Software
Software Component
Operating Systems and Components

Microsoft Windows 2000 Service Pack 4

Microsoft Internet Explorer 5.01 Service Pack 4
Windows Messenger 5.1

Windows XP Service Pack 2 and Windows XP Service Pack 3

Microsoft Internet Explorer 6
Windows Internet Explorer 7
Microsoft .NET Framework 1.0 Service Pack 3
Microsoft .NET Framework 1.1 Service Pack 1
Microsoft .NET Framework 2.0
Microsoft .NET Framework 2.0 Service Pack 1
Windows Messenger 4.7
Windows Messenger 5.1

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2

Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2

Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2

Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems

Windows Vista and Windows Vista Service Pack 1

Windows Internet Explorer 7
Microsoft .NET Framework 1.0 Service Pack 3
Microsoft .NET Framework 1.1 Service Pack 1
Microsoft .NET Framework 2.0
Microsoft .NET Framework 2.0 Service Pack 1
Windows Messenger 4.7

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

Windows Server 2008 for 32-bit Systems

Windows Server 2008 for x64-based Systems

Windows Server 2008 for Itanium-based Systems

Microsoft Office 2000 Service Pack 3

Other Office Software

Microsoft Office Viewer 2003 and Microsoft Office Viewer 2003 Service Pack 3 for Excel, PowerPoint, Word, and Visio

Microsoft Office Viewer 2007 and Microsoft Office Viewer 2007 Service Pack 1 for Excel, PowerPoint, Word, and Visio

Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats and Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1

Microsoft Visio 2003 Service Pack 2

Microsoft Visio 2003 Service Pack 3

Microsoft Visio 2007

Microsoft Visio 2007 Service Pack 1

Microsoft Visio 2002 Viewer

Microsoft Visio 2003 Viewer

Microsoft Visio 2007 Viewer

Microsoft Visio 2007 Viewer Service Pack 1

Microsoft Office PowerPoint Viewer 2007 and Microsoft Office PowerPoint Viewer 2007 Service Pack 1

Microsoft Office SharePoint Server 2007

Microsoft Office SharePoint Server 2007 Service Pack 1

Microsoft Works 9.0

Microsoft Works Suite 2005

Microsoft Works Suite 2006

Microsoft Office 2004 for Mac

Microsoft Office 2008 for Mac

Microsoft SQL Server

SQL Server 7.0 Service Pack 4

SQL Server 2000 Service Pack 4

SQL Server 2000 Itanium-based Edition Service Pack 4

Microsoft Data Engine (MSDE) 1.0

Microsoft SQL Server 2000 Desktop Engine (MSDE 2000)

Microsoft SQL Server 2005 Express Edition Service Pack 2

Developer Tools

Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package

Microsoft Report Viewer 2008 Redistributable Package

Frequently Asked Questions (FAQ) Related to This Security Update

Where are the file information details?
The file information details can be found in Microsoft Knowledge Base Article 954593.

What are the known issues that customers may experience when installing this security update?
Microsoft Knowledge Base Article 954593 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues.

There are both GDR and QFE updates offered for my version of SQL. How do I know which update to use?
First, determine your SQL Server version number. For more information on determining your SQL Server version number, see Microsoft Knowledge Base Article 321185.

Second, in the table below, locate the version range that your SQL Server version number falls within. The corresponding update is the update you need to install.

Note If your SQL Server version number does not fall within any of the ranges in the table below, your SQL Server version is no longer supported. Please upgrade to the latest Service Pack or SQL Server product in order to apply this and future security updates.
SQL Server Version Range

9.00.3042-9.00.3072

9.00.3150-9.00.3281
SQL Server

SQL Server 2005 GDR
(KB954606)

SQL Server 2005 QFE
(KB954607)

For additional installation instructions, see the Security Update Information subsection for your SQL Server edition in the Update Information section.

The last Microsoft Security Bulletinfor GDI+, MS04-028, lists affected and non-affected software that is not listed in this bulletin. Why?
The software listed in this bulletin have been tested to determine which supported versions or editions are affected and which supported versions are not affected. Other versions or editions listed in the MS04-028 are past their support life cycle. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.

Why are Microsoft .NET Framework, Microsoft Visual Studio, and Microsoft Visual FoxPro listed in the Affected Software table if they are not impacted by the vulnerabilities described by this bulletin?
Microsoft has not identified any attack vectors for these vulnerabilities specific to the affected software updated for Microsoft .NET Framework, Microsoft Visual Studio, or Microsoft Visual FoxPro. This security update is offered to developers that use Microsoft .NET Framework, Microsoft Visual Studio, or Microsoft Visual FoxPro so that they may issue their own updated version of their applications.

Is Microsoft Windows 2000 Service Pack 4 affected by the vulnerabilities listed in this bulletin?
No. By default, Microsoft Windows 2000 Service Pack 4 is not affected, and will not be offered the update. However, the following software are vulnerable when installed on Microsoft Windows 2000 Service Pack 4:
•

Microsoft Internet Explorer 6
•

Microsoft Forefront Client Security 1.0

These software are only vulnerable when installed on Microsoft Windows 2000 Service Pack 4.

Additionally, the updates for developers using Microsoft .NET Framework 1.0 Service Pack 3, Microsoft .NET Framework 1.1 Service Pack 1, Microsoft .NET Framework 2.0, Microsoft .NET Framework 2.0 Service Pack 1, Microsoft Visual FoxPro 8.0 Service Pack 1, Microsoft Visual FoxPro 9.0 Service Pack 1, Microsoft Visual FoxPro 9.0 Service Pack 2, and Microsoft Platform SDK Redistributable: GDI+ only apply for application developers who develop their software on systems running Microsoft Windows 2000 Service Pack 4.

Why is Windows Server 2008 Server Core being offered this update?
The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 if Windows Server 2008 was installed using the Server Core installation option, even though the files affected by these vulnerabilities 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 Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.

MS08-055 also describes a vulnerability in Microsoft Office XP Service Pack 3. How does MS08-055 relate to this bulletin (MS08-052)?
As part of the cumulative servicing model for Microsoft Office XP, this security update for Microsoft Office XP Service Pack 3 (KB938464) also addresses the vulnerability described in MS08-055. Users with Microsoft Office XP Service Pack 3 installed will have to install this security update but will only need to install it once.

I use Microsoft Office 2003 Service Pack 2. Are any additional security features included in this update?
Yes, as part of the servicing model for Microsoft Office 2003, when users of Microsoft Office 2003 Service Pack 2 install this update, their systems will be upgraded to security functionality that was initially released with Microsoft Office 2003 Service Pack 3. All updates released after January 1, 2008 for Microsoft Office 2003 Service Pack 2 will include these security features, which were introduced in Microsoft Office 2003 Service Pack 3. We have thoroughly tested this update, but as with all updates, we recommend that users perform testing appropriate to the environment and configuration of their systems. For more information on this issue, please see Microsoft Knowledge Base Article 951646.

I am a third-party application developer and I use gdiplus.dll in my application. Is my application vulnerable and how do I update it?
Developers who redistribute gdiplus.dll should ensure that they update the version of gdiplus.dll installed with their application by downloading the update provided in this bulletin. Developers are encouraged to follow recommended best practices for using a shared component. For more information on best practices on shared component use, please see the Microsoft Knowledge Base Article 835322 on Isolated Applications.

I am developing software which contains the redistributable file gdiplus.dll. What do I do?
You should install the security update included in this security bulletin for your development software. If you have redistributed gdiplus.dll with your application, you should issue an updated version of your application to your customers with the updated version of this file included in the download of this security update for your development software.

If third-party applications use or install the affected gdiplus.dll component, could I still be vulnerable even after I have installed all required Microsoft security updates?
No, this security update replaces and re-registers the affected component provided with the operating system. If third party applications follow the recommended best practices for using a shared component as a side-by-side assembly then they are also not affected. Customers are potentially at risk if third party applications do not follow the recommended best practices and instead redistribute an old version of gdiplus.dll with their application. Microsoft Knowledge Base Article 954593 also contains instructions for customers who wish to manually check for the registered affected component. Customers are encouraged to contact their third party solutions developer for additional information.

Why does this update address several reported security vulnerabilities?
This update contains support for several vulnerabilities because the modifications that are required to address these issues are located in related files. Instead of having to install several updates that are almost the same, customers need to install this update only.

What is GDI+?
GDI+ is a graphics device interface that provides two-dimensional vector graphics, imaging, and typography to applications and programmers.

What is VML?
Vector Markup Language (VML) is an XML-based exchange, editing, and delivery format for high-quality vector graphics on the Web that meets the needs of both productivity users and graphic design professionals. XML is a simple, flexible, and open text-based language that complements HTML. For more information on the VML, see the product documentation.

I am using an older release of the software discussed in this security bulletin. What should I do?
The affected software listed in this bulletin have been tested to determine which releases are affected. Other releases are past their support life cycle. To determine the support life cycle for your software release, visit Microsoft Support Lifecycle.

It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. For more information about the Windows Product Lifecycle, visit Microsoft Support Lifecycle. For more information about the extended security update support period for these software versions or editions, visit Microsoft Product Support Services.

Customers who require custom support for older releases must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit Microsoft Worldwide Information, select the country, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Windows Operating System Product Support Lifecycle FAQ.
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Vulnerability Information

Severity Ratings and Vulnerability Identifiers
Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected Software GDI+ VML Buffer Overrun Vulnerability - CVE-2007-5348 GDI+ EMF Memory Corruption Vulnerability - CVE-2008-3012 GDI+ GIF Parsing Vulnerability - CVE-2008-3013 GDI+ WMF Buffer Overrun Vulnerability - CVE-2008-3014 GDI+ BMP Integer Overflow Vulnerability - CVE-2008-3015 Aggregate Severity Rating
Windows 2000 and Components

Microsoft Internet Explorer 6 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4

Critical
Remote Code Execution

Not applicable

Critical

Microsoft .NET Framework 1.0 Service Pack 3 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft .NET Framework 1.1 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft .NET Framework 2.0 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft .NET Framework 2.0 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4

None

None
Windows XP and Components

Windows XP Service Pack 2 and Windows XP Service Pack 3

Critical
Remote Code Execution

Not applicable

Critical

Windows XP Professional x64 Edition and Windows XP Professional x64 Edition Service Pack 2

Critical
Remote Code Execution

Not applicable

Critical
Windows Server 2003 and Components

Windows Server 2003 Service Pack 1 and Windows Server 2003 Service Pack 2

Critical
Remote Code Execution

Not applicable

Critical

Windows Server 2003 x64 Edition and Windows Server 2003 x64 Edition Service Pack 2

Critical
Remote Code Execution

Not applicable

Critical

Windows Server 2003 with SP1 for Itanium-based Systems and Windows Server 2003 with SP2 for Itanium-based Systems

Critical
Remote Code Execution

Not applicable

Critical
Windows Vista and Components

Windows Vista and Windows Vista Service Pack 1

Critical
Remote Code Execution

Not applicable

Critical

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

Critical
Remote Code Execution

Not applicable

Critical
Windows Server 2008 and Components

Windows Server 2008 for 32-bit Systems*

Critical
Remote Code Execution

Not applicable

Critical

Windows Server 2008 for x64-based Systems*

Critical
Remote Code Execution

Not applicable

Critical

Windows Server 2008 for Itanium-based Systems

Critical
Remote Code Execution

Not applicable

Critical
Microsoft Office Suites

Microsoft Office XP Service Pack 3

Important
Remote Code Execution

Important

Microsoft Office 2003 Service Pack 2 and Microsoft Office 2003 Service Pack 3

Important
Remote Code Execution

Important

2007 Microsoft Office System and 2007 Microsoft Office System Service Pack 1

Important
Remote Code Execution

Important
Other Office Software

Microsoft Visio 2002 Service Pack 2

Important
Remote Code Execution

Important

Microsoft Office PowerPoint Viewer 2003

Important
Remote Code Execution

Important

Microsoft Works 8

Important
Remote Code Execution

Important

Microsoft Digital Image Suite 2006

Critical
Remote Code Execution

Critical
SQL Server

SQL Server 2000 Reporting Services Service Pack 2

Critical
Remote Code Execution

Critical

SQL Server 2005 Service Pack 2

Critical
Remote Code Execution

Critical

SQL Server 2005 x64 Edition Service Pack 2

Critical
Remote Code Execution

Critical

SQL Server 2005 for Itanium-based Systems Service Pack 2

Critical
Remote Code Execution

Critical
Developer Tools

Microsoft Visual Studio .NET 2002 Service Pack 1

None

Microsoft Visual Studio .NET 2003 Service Pack 1

None

Microsoft Visual Studio 2005 Service Pack 1

None

Microsoft Visual Studio 2008

None

Microsoft Report Viewer 2005 Service Pack 1 Redistributable Package

Critical
Remote Code Execution

Critical

Microsoft Report Viewer 2008 Redistributable Package

Critical
Remote Code Execution

Critical

Microsoft Visual FoxPro 8.0 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft Visual FoxPro 9.0 Service Pack 1 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft Visual FoxPro 9.0 Service Pack 2 when installed on Microsoft Windows 2000 Service Pack 4

None

Microsoft Platform SDK Redistributable: GDI+

None

None
Security Software

Microsoft Forefront Client Security 1.0 when installed on Microsoft Windows 2000 Service Pack 4

Important
Remote Code Execution

Important

*Windows Server 2008 server core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 if Windows Server 2008 was installed using the Server Core installation option, even though the files affected by these vulnerabilities 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 Server Core. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008; see Compare Server Core Installation Options.
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GDI+ VML Buffer Overrun Vulnerability - CVE-2007-5348

A remote code execution vulnerability exists in the way that GDI+ handles gradient sizes. The vulnerability could allow remote code execution if a user browses to a Web site that contains specially crafted content. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2007-5348.

Mitigating Factors for GDI+ VML Buffer Overrun Vulnerability - CVE-2007-5348

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:
•

An attacker who successfully exploited this vulnerability 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.
•

The vulnerability could be exploited by an attacker who convinced a user to open a specially crafted file. There is no way for an attacker to force a user to open a specially crafted file.
•

In a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content or advertisements could contain specially crafted content that could exploit this vulnerability. In all cases, however, 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.
•

By default, Internet Explorer on Windows Server 2003 and Windows Server 2008 runs in a restricted mode that is known as Enhanced Security Configuration. This mode sets the security level for the Internet zone to High. This is a mitigating factor for Web sites that you have not added to the Internet Explorer Trusted sites zone. See the FAQ subsection of this vulnerability section for more information about Internet Explorer Enhanced Security Configuration.
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Workarounds for GDI+ VML Buffer Overrun Vulnerability - CVE-2007-5348

Workaround refers to a setting or configuration change that does not correct the underlying vulnerability but would help block known attack vectors before you apply the update. Microsoft has tested the following workarounds and states in the discussion whether a workaround reduces functionality:
•

Restrict access to gdiplus.dll

Run the following commands from an elevated administrator command prompt

for /F "tokens=" %G IN ('dir /b /s %windir%\Microsoft.NET\Framework\gdiplus.dll') DO cacls %G /E /P everyone:N
for /F "tokens=" %G IN ('dir /b /s %windir%\winsxs\gdiplus.dll') DO cacls %G /E /P everyone:N
for /F "tokens=" %G IN ('dir /b /s ^"%windir%\Downloaded Program Files\gdiplus.dll^"') DO cacls %G /E /P everyone:N
for /F "tokens=" %G IN ('dir /b /s ^"%programfiles%\microsoft office\gdiplus.dll^"') DO cacls "%G" /E /P everyone:N
for /F "tokens=*" %G IN ('dir /b /s ^"%programfiles^(86^)%\microsoft office\gdiplus.dll^"') DO cacls "%G" /E /P everyone:N
cacls "%programfiles%\Common Files\Microsoft Shared\VFP\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Common Files\Microsoft Shared\VFP\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Microsoft Visual FoxPro 8\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Microsoft Visual FoxPro 8\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Microsoft Visual FoxPro 9\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Microsoft Visual FoxPro 9\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Microsoft Digital Image 2006\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Microsoft Digital Image 2006\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Common Files\Microsoft shared\Works Shared\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Common Files\Microsoft shared\Works Shared\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Microsoft Works\gdiplus.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Microsoft Works\gdiplus.dll" /E /P everyone:N
cacls "%programfiles%\Common Files\Microsoft Shared\VGX\vgx.dll" /E /P everyone:N
cacls "%programfiles(x86)%\Common Files\Microsoft Shared\VGX\vgx.dll" /E /P everyone:N

Restart

Impact of workaround. Windows Picture and Fax Viewer (on editions prior to Windows Vista) and other applications that rely on GDI+ will not be able to view images. Also, thumbnails in Windows Explorer (on versions prior to Vista) will not display.

How to undo the workaround.

Run the following commands from an elevated administrator command prompt

for /F "tokens=" %G IN ('dir /b /s %windir%\Microsoft.NET\Framework\gdiplus.dll') DO cacls %G /E /R everyone
for /F "tokens=" %G IN ('dir /b /s %windir%\winsxs\gdiplus.dll') DO cacls %G /E /R everyone
for /F "tokens=" %G IN ('dir /b /s ^"%windir%\Downloaded Program Files\gdiplus.dll^"') DO cacls %G /E /R everyone
for /F "tokens=" %G IN ('dir /b /s ^"%programfiles%\microsoft office\gdiplus.dll^"') DO cacls "%G" /E /R everyone
for /F "tokens=*" %G IN ('dir /b /s ^"%programfiles^(86^)%\microsoft office\gdiplus.dll^"') DO cacls "%G" /E /R everyone
cacls "%programfiles%\Common Files\Microsoft Shared\VFP\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Common Files\Microsoft Shared\VFP\gdiplus.dll" /E /R everyone
cacls "%programfiles%\Microsoft Visual FoxPro 8\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Microsoft Visual FoxPro 8\gdiplus.dll" /E /R everyone
cacls "%programfiles%\Microsoft Visual FoxPro 9\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Microsoft Visual FoxPro 9\gdiplus.dll" /E /R everyone
cacls "%programfiles%\Microsoft Digital Image 2006\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Microsoft Digital Image 2006\gdiplus.dll" /E /R everyone
cacls "%programfiles%\Common Files\Microsoft shared\Works Shared\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Common Files\Microsoft shared\Works Shared\gdiplus.dll" /E /R everyone
cacls "%programfiles%\Microsoft Works\gdiplus.dll" /E /R everyone
cacls "%programfiles(x86)%\Microsoft Works\gdiplus.dll" /E /R everyone
cacls "%programfiles%\ Common Files\Microsoft Shared\VGX\vgx.dll" /E /R everyone
cacls "%programfiles(x86)%\ Common Files\Microsoft Shared\VGX\vgx.dll" /E /R everyone

Restart
•

Unregister vgx.dll

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" -u "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the un-registration process has succeeded. Click OK to close the dialog box.

Impact of workaround. Applications that render VML will no longer do so once vgx.dll has been unregistered.

How to undo the workaround.

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the registration process has succeeded. Click OK to close the dialog box.
•

Prevent RSClientPrint from running in Internet Explorer

You can disable attempts to instantiate RSClientPrint in Internet Explorer by setting the kill bit for the control in the registry.

Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

For detailed steps that you can use to prevent a control from running in Internet Explorer, see Microsoft Knowledge Base Article 240797. Follow these steps in this article to create a Compatibility Flags value in the registry to prevent RSClientPrint from being instantiated in Internet Explorer.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

You can apply this .reg file to individual systems by double-clicking it. You can also apply it across domains by using Group Policy. For more information about Group Policy, visit the following Microsoft Web sites:
•

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.

Impact of workaround. There is no impact as long as the object is not intended to be used in Internet Explorer.

How to undo the workaround.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.
Top of sectionTop of section

FAQ for GDI+ VML Buffer Overrun Vulnerability - CVE-2007-5348

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

What causes the vulnerability?
The vulnerability is caused by a heap-based buffer overrun when GDI+ improperly processes gradient sizes handled by the vector graphics link library.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

How could an attacker exploit the vulnerability?
An attacker could host a specially crafted Web site that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the Web site. This can also include compromised Web sites and Web sites that accept or host user-provided content or advertisements. These Web sites could contain specially crafted content that could exploit this vulnerability. In all cases, however, 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 in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.

What systems are primarily at risk from the vulnerability?
This vulnerability requires that a user is logged on and reading e-mail messages or is visiting Web sites for any malicious action to occur. Therefore, any systems where e-mail messages are read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability. Systems that are not typically used to visit Web sites, such as most server systems, are at a reduced risk.

I am running Internet Explorer for Windows Server 2003 or Windows Server 2008. Does this mitigate this vulnerability?
Yes. By default, Internet Explorer on Windows Server 2003 and Windows Server 2008 runs in a restricted mode that is known as Enhanced Security Configuration. Enhanced Security Configuration is a group of preconfigured settings in Internet Explorer that can reduce the likelihood of a user or administrator downloading and running specially crafted Web content on a server. This is a mitigating factor for Web sites that you have not added to the Internet Explorer Trusted sites zone. See also Managing Internet Explorer Enhanced Security Configuration.

What does the update do?
The update removes the vulnerability by modifying the way that GDI+ processes gradient sizes handled by the vector graphics link library.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure. Microsoft had not received any information to indicate that this vulnerability had been publicly disclosed when this security bulletin was originally issued.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers and had not seen any examples of proof of concept code published when this security bulletin was originally issued.
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Top of sectionTop of section

GDI+ EMF Memory Corruption Vulnerability - CVE-2008-3012

A remote code execution vulnerability exists in the way that GDI+ handles memory allocation. The vulnerability could allow remote code execution if a user opens a specially crafted EMF image file or browses to a Web site that contains specially crafted content. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3012.

Mitigating Factors for GDI+ EMF Memory Corruption Vulnerability - CVE-2008-3012

The vulnerability could be exploited by an attacker who convinced a user to open a specially crafted file. There is no way for an attacker to force a user to open a specially crafted file.
•

Workarounds for GDI+ EMF Memory Corruption Vulnerability - CVE-2008-3012

Restrict access to gdiplus.dll

Run the following commands from an elevated administrator command prompt

Restart

How to undo the workaround.

Run the following commands from an elevated administrator command prompt

Restart
•

Unregister vgx.dll
To mitigate the Web-based attack vector:

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" -u "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the un-registration process has succeeded. Click OK to close the dialog box.

Impact of workaround. Applications that render VML will no longer do so once vgx.dll has been unregistered.

How to undo the workaround.

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the registration process has succeeded. Click OK to close the dialog box.
•

Prevent RSClientPrint from running in Internet Explorer

You can disable attempts to instantiate RSClientPrint in Internet Explorer by setting the kill bit for the control in the registry.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.

Impact of workaround. There is no impact as long as the object is not intended to be used in Internet Explorer.

How to undo the workaround.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.
Top of sectionTop of section

FAQ for GDI+ EMF Memory Corruption Vulnerability - CVE-2008-3012

What causes the vulnerability?
The vulnerability is caused by a memory corruption when GDI+ improperly processes a specially crafted EMF image file.

What is the Enhanced Metafile (EMF) image format?
An EMF image is a 32-bit format that can contain both vector information and bitmap information. This format is an improvement over the Windows Metafile Format and contains extended features.

For more information about image types and formats, see Microsoft Knowledge Base Article 320314. Additional information about these file formats is also available at the MSDN Library Web Site.

How could an attacker exploit the vulnerability?
This vulnerability requires that a user open or view a specially crafted image file.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a specially-crafted EMF image file or an Office document with a specially-crafted EMF image file embedded in it to the user and by convincing the user to open the document or view the e-mail containing the specially crafted image file.

In a Web-based attack scenario, an attacker could host a specially crafted Web site that is designed to exploit this vulnerability through Internet Explorer and then convince a user to view the Web site. This can also include compromised Web sites and Web sites that accept or host user-provided content or advertisements. These Web sites could contain specially crafted content that could exploit this vulnerability. In all cases, however, 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 in an Instant Messenger request that takes users to the attacker's Web site. It could also be possible to display specially crafted Web content by using banner advertisements or by using other methods to deliver Web content to affected systems.

What does the update do?
The update removes the vulnerability by modifying the way that GDI+ handles memory allocation with EMF image files.

GDI+ GIF Parsing Vulnerability - CVE-2008-3013

A remote code execution vulnerability exists in the way that GDI+ parses GIF images. The vulnerability could allow remote code execution if a user opens a specially crafted GIF image file or browses to a Web site that contains specially crafted content. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3013.

Mitigating Factors for GDI+ GIF Parsing Vulnerability - CVE-2008-3013

The vulnerability could be exploited by an attacker who convinced a user to open a specially crafted file. There is no way for an attacker to force a user to open a specially crafted file.
•

Workarounds for GDI+ GIF Parsing Vulnerability - CVE-2008-3013

Restrict access to gdiplus.dll

Run the following commands from an elevated administrator command prompt

Restart

How to undo the workaround.

Run the following commands from an elevated administrator command prompt

Restart
•

Unregister vgx.dll
To mitigate the Web-based attack vector:

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" -u "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the un-registration process has succeeded. Click OK to close the dialog box.

Impact of workaround. Applications that render VML will no longer do so once vgx.dll has been unregistered.

How to undo the workaround.

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the registration process has succeeded. Click OK to close the dialog box.
•

Prevent RSClientPrint from running in Internet Explorer

You can disable attempts to instantiate RSClientPrint in Internet Explorer by setting the kill bit for the control in the registry.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.

Impact of workaround. There is no impact as long as the object is not intended to be used in Internet Explorer.

How to undo the workaround.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.
Top of sectionTop of section

FAQ for GDI+ GIF Parsing Vulnerability - CVE-2008-3013

What causes the vulnerability?
The vulnerability is caused when GDI+ improperly parses records in a specially crafted GIF image file.

What is Graphics Interchange Format (GIF) image format?
Graphics Interchange Format (GIF) images are single or multiple raster files that support transparency, compression, interlacing, and multiple-image pictures (animated GIFs).

For more information about image types and formats, see Microsoft Knowledge Base Article 320314. Additional information about these file formats is also available at the MSDN Library Web Site.

How could an attacker exploit the vulnerability?
This vulnerability requires that a user open or view a specially crafted image file.

What does the update do?
The update removes the vulnerability by modifying the way that GDI+ parses GIF image files.

GDI+ WMF Buffer Overrun Vulnerability - CVE-2008-3014

A remote code execution vulnerability exists in the way that GDI+ allocates memory for WMF image files. The vulnerability could allow remote code execution if a user opens a specially crafted WMF image file or browses to a Web site that contains specially crafted content. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2008-3014.

Mitigating Factors for GDI+ WMF Buffer Overrun Vulnerability - CVE-2008-3014

The vulnerability could be exploited by an attacker who convinced a user to open a specially crafted file. There is no way for an attacker to force a user to open a specially crafted file.
•

Workarounds for GDI+ WMF Buffer Overrun Vulnerability - CVE-2008-3014

Restrict access to gdiplus.dll

Run the following commands from an elevated administrator command prompt

Restart

How to undo the workaround.

Run the following commands from an elevated administrator command prompt

Restart
•

Unregister vgx.dll
To mitigate the Web-based attack vector:

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" -u "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the un-registration process has succeeded. Click OK to close the dialog box.

Impact of workaround. Applications that render VML will no longer do so once vgx.dll has been unregistered.

How to undo the workaround.

Click Start, click Run, type "%SystemRoot%\System32\regsvr32.exe" "%CommonProgramFiles%\Microsoft Shared\VGX\vgx.dll", and then click OK.
A dialog box appears to confirm that the registration process has succeeded. Click OK to close the dialog box.
•

Prevent RSClientPrint from running in Internet Explorer

You can disable attempts to instantiate RSClientPrint in Internet Explorer by setting the kill bit for the control in the registry.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=dword:00000400

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.

Impact of workaround. There is no impact as long as the object is not intended to be used in Internet Explorer.

How to undo the workaround.

Paste the following text in a text editor such as Notepad. Then, save the file by using the .reg file name extension.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\ActiveX Compatibility\{FA91DF8D-53AB-455D-AB20-F2F023E498D3}]

"Compatibility Flags"=-

Group Policy collection
•

What is Group Policy Object Editor?
•

Core Group Policy tools and settings

Note You must restart Internet Explorer for your changes to take effect.
Top of sectionTop of section

FAQ for GDI+ WMF Buffer Overrun Vulnerability - CVE-2008-3014

What causes the vulnerability?
The vulnerability is caused by a buffer overrun when GDI+ improperly allocates memory when parsing a specially crafted WMF image file.

What is theWindows Metafile (WMF) image format?
A WMF image is a 16-bit metafile format that can contain both vector information and bitmap information. It is optimized for the Windows operating system.

For more information about image types and formats, see Microsoft Knowledge Base Article 320314. Additional information about these file formats is also available at the MSDN Library Web Site.

How could an attacker exploit the vulnerability?
This vulnerability requires that a user open or view a specially crafted image file.

What does the update do?
The update removes the vulnerability by modifying the way that GDI+ allocates memory for WMF image files.

GDI+ BMP Integer Overflow Vulnerability - CVE-2008-3015

Other Information
Acknowledgments

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

Greg MacManus of VeriSign iDefense Labs for reporting the GDI+ VML Buffer Overrun Vulnerability (CVE-2007-5348)
•

Bing Liu of Fortinet's FortiGuard Global Security Research Team for reporting the GDI+ EMF Memory Corruption Vulnerability (CVE-2008-3012)
•

Peter Winter-Smith of NGSSoftware and Ivan Fratric working with Zero Day Initiative for reporting the GDI+ GIF Parsing Vulnerability (CVE-2008-3013)
•

Vulnerability Research Team, Assurent Secure Technologies for reporting the GDI+ WMF Buffer Overrun Vulnerability (CVE-2008-3014)
•

An anonymous researcher working with Zero Day Initiative for reporting the GDI+ BMP Integer Overflow Vulnerability (CVE-2008-3015)
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Support
•

Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
•

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 the International Support Web site.
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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.

Revisions
•

V1.0 (September 9, 2008): Bulletin published.