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Notice

On January 18, 2018, update 4074880 was released to replace update 4055002 for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Windows Server 2008 R2 SP1. Update 4074880 no longer contains the issue that is described in the following Knowledge Base article: 

4074906 - "TypeInitializationException" or "FileFormatException" error in WPF applications that request fallback fonts after you install the January 9, 2018, .NET Security and Quality Rollup (KB4055002) 

Summary

This security update resolves a security feature bypass vulnerability that exists when Microsoft .NET Framework and .NET Core components do not completely validate certificates. This security update addresses the vulnerability by helping to make sure that .NET Framework and .NET Core components completely validate certificates. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0786.

Additionally, this security update resolves a denial of service vulnerability that exists when .NET Framework and .NET Core components process XML documents incorrectly. This update addresses the vulnerability by correcting how .NET Framework and .NET Core component applications handle XML document processing. To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-0764.

Important

  • All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 require the d3dcompiler_47.dll to be installed. We recommend that you install the included d3dcompiler_47.dll before you apply this update. For more information about the d3dcompiler_47.dll, see KB 4019990.

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

Additional information about this security update

Enhanced Key Usage (EKU) is described in RFC 5280 in section 4.2.1.12. This extension indicates one or more purposes for which the certified public key may be used, in addition to or instead of the basic purposes that are indicated in the key usage extension. For example, a certificate that is used for the authentication of a client to a server must be configured for Client Authentication. Similarly, a certificate that is used for the authentication of a server must be configured for Server Authentication. With this change, besides requiring the appropriate client/server EKU on certificates, if the root certificate is disabled, the certificate chain validation will fail.

When certificates are used for authentication, the authenticator examines the certificate that is provided by the remote endpoint and seeks the correct purpose object identifier in Application Policies extensions. When a certificate is used for client authentication, the object identifier for Client Authentication must be present in the EKU extensions of the certificate, or authentication fails. The object identifier for Client Authentication is 1.3.6.1.5.5.7.3.2. Likewise, when a certificate is used for server authentication, the object identifier for Server Authentication must be present in the EKU extensions of the certificate, or authentication fails. The object identifier for Server Authentication is 1.3.6.1.5.5.7.3.1. Certificates that have no EKU extension continue to authenticate correctly.

First, consider making changes to your component’s certificates to make sure that they are using the correct EKU OID attributes and are secured correctly. If you temporarily cannot access correctly reissued certificates, you can choose to opt in or out of the security change to avoid any connectivity effects. To do this, specify the following appsetting in the configuration file:

<appSettings>
    <add key="wcf:useLegacyCertificateUsagePolicy" value="true" />
</appSettings>

Note Setting the value to “true” will opt out of the security changes.

  • For more information about this security update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:

    4055532 Security and Quality Rollup for the .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 updates for Windows 7 SP1 and Server 2008 R2 SP1 (KB 4055532)

How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.
 

Method 2: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then click Action.

  3. Click Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. The Microsoft Update Catalog screen opens. Enter 4055532 into the Search box, and then click Search.

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.

  7. After you select all the packages that you require, click View Basket.

  8. Click Import to import the packages to your WSUS server.

  9. To return to WSUS, click Close after the packages are imported.

The updates are now available for installation through WSUS.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20180109 Security update deployment information: January 9, 2018

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not require a system restart after you apply it unless files that are being updated are locked or are being used.

Update replacement information

This update replaces previously released updates KB 4049019 and KB 4041086.

File information

File hash

File name

SHA1 hash

SHA256 hash

NDP47-KB4074880-x64.exe

7614E045D68CF219949917B18194B0BC8EE2B007

3C8C24A399A00CDAEA369A79622D9FC198EDA0D7E372828C7B22165C8A850015

NDP47-KB4074880-x86.exe

3B871776F1918A0BC83F51BB2C5AC0366B18F08B

14883E19073A3C9D5EC56C50C7EEF4B20F72448458F0A1207A244CC1D969121C

File attributes

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

For all x86-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2117.0

42,648

12-Jan-2018

02:30

aspnet_wp.exe

4.7.2117.0

46,176

12-Jan-2018

02:30

clr.dll

4.7.2117.0

7,221,880

12-Jan-2018

02:30

clrjit.dll

4.7.2117.0

522,888

12-Jan-2018

02:30

dfdll.dll

4.7.2117.0

159,872

12-Jan-2018

02:30

GlobalUserInterface.CompositeFont

182,000

18-Oct-2017

02:32

mscordacwks.dll

4.7.2117.0

1,341,080

12-Jan-2018

02:30

mscordbi.dll

4.7.2117.0

1,164,944

12-Jan-2018

02:30

mscoreei.dll

4.7.2117.0

511,632

12-Jan-2018

02:30

mscorlib.dll

4.7.2117.0

5,614,224

12-Jan-2018

02:30

msvcp120_clr0400.dll

12.0.52519.0

485,576

12-Jan-2018

02:32

msvcr120_clr0400.dll

12.0.52519.0

987,840

12-Jan-2018

02:32

VsVersion.dll

14.7.2563.0

19,096

12-Jan-2018

02:32

peverify.dll

4.7.2117.0

188,560

12-Jan-2018

02:30

PresentationCore.dll

4.7.2563.0

3,630,416

12-Jan-2018

02:32

PresentationFramework.dll

4.7.2563.0

6,210,912

12-Jan-2018

02:32

PresentationHost_v0400.dll

4.7.2563.0

197,320

12-Jan-2018

02:32

PresentationHost_v0400.dll.mui

4.7.2563.0

84,696

12-Jan-2018

02:32

PresentationNative_v0400.dll

4.7.2563.0

827,088

12-Jan-2018

02:32

ServiceMonikerSupport.dll

4.7.2612.0

29,376

12-Jan-2018

02:30

SMDiagnostics.dll

4.7.2612.0

73,376

12-Jan-2018

02:30

SOS.dll

4.7.2117.0

743,544

12-Jan-2018

02:30

System.Activities.dll

4.7.2612.0

1,532,600

12-Jan-2018

02:30

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

12-Jan-2018

02:30

System.Core.dll

4.7.2563.0

1,482,304

12-Jan-2018

02:32

System.Data.Entity.dll

4.7.2117.0

4,034,232

12-Jan-2018

02:30

System.IdentityModel.dll

4.7.2612.0

1,088,720

12-Jan-2018

02:30

System.IdentityModel.Services.dll

4.7.2612.0

198,368

12-Jan-2018

02:30

System.Runtime.Serialization.dll

4.7.2612.0

1,054,464

12-Jan-2018

02:30

System.ServiceModel.Channels.dll

4.7.2612.0

157,920

12-Jan-2018

02:30

System.ServiceModel.Discovery.dll

4.7.2612.0

308,448

12-Jan-2018

02:30

System.ServiceModel.dll

4.7.2612.0

6,315,712

12-Jan-2018

02:30

System.ServiceModel.Internals.dll

4.7.2612.0

253,696

12-Jan-2018

02:30

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

12-Jan-2018

02:30

System.ServiceModel.WasHosting.dll

4.7.2612.0

39,656

12-Jan-2018

02:30

System.Web.ApplicationServices.dll

4.7.2117.0

70,920

12-Jan-2018

02:30

System.Web.Extensions.dll

4.7.2117.0

1,849,552

12-Jan-2018

02:30

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

12-Jan-2018

02:30

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

12-Jan-2018

02:30

System.Workflow.Runtime.dll

4.7.2117.0

499,400

12-Jan-2018

02:30

System.Runtime.Caching.dll

4.7.2117.0

109,928

12-Jan-2018

02:30

System.Data.dll

4.7.2117.0

3,391,128

12-Jan-2018

02:30

System.Data.SqlXml.dll

4.7.2612.0

734,400

12-Jan-2018

02:30

System.Deployment.dll

4.7.2117.0

845,496

12-Jan-2018

02:30

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

12-Jan-2018

02:30

System.dll

4.7.2117.0

3,525,376

12-Jan-2018

02:30

System.Drawing.dll

4.7.2117.0

599,344

12-Jan-2018

02:30

System.Management.dll

4.7.2117.0

415,416

12-Jan-2018

02:30

System.Runtime.Remoting.dll

4.7.2117.0

346,464

12-Jan-2018

02:30

System.Security.dll

4.7.2117.0

316,592

12-Jan-2018

02:30

System.Transactions.dll

4.7.2117.0

306,496

12-Jan-2018

02:30

System.Web.dll

4.7.2117.0

5,405,848

12-Jan-2018

02:30

System.Windows.Controls.Ribbon.dll

4.7.2563.0

742,632

12-Jan-2018

02:32

System.Windows.Forms.dll

4.7.2117.0

5,181,648

12-Jan-2018

02:30

System.Xaml.dll

4.7.2563.0

642,112

12-Jan-2018

02:32

System.Xml.dll

4.7.2612.0

2,670,224

12-Jan-2018

02:30

UIAutomationClient.dll

4.7.2563.0

178,000

12-Jan-2018

02:32

UIAutomationClientsideProviders.dll

4.7.2563.0

361,352

12-Jan-2018

02:32

UIAutomationProvider.dll

4.7.2563.0

48,992

12-Jan-2018

02:32

UIAutomationTypes.dll

4.7.2563.0

221,008

12-Jan-2018

02:32

webengine.dll

4.7.2117.0

24,720

12-Jan-2018

02:30

webengine4.dll

4.7.2117.0

550,040

12-Jan-2018

02:30

WindowsBase.dll

4.7.2563.0

1,289,528

12-Jan-2018

02:32

WMINet_Utils.dll

4.7.2117.0

136,344

12-Jan-2018

02:30

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

12-Jan-2018

02:30

WPFFontCache_v0400.exe.mui

4.7.2563.0

19,144

12-Jan-2018

02:32

WPFFontCache_v0400.exe

4.7.2563.0

25,704

12-Jan-2018

02:32

wpfgfx_v0400.dll

4.7.2563.0

1,345,184

12-Jan-2018

02:32

Placeholder.dll

4.7.2563.0

24,728

12-Jan-2018

02:32

PenIMC2_v0400.dll

4.7.2563.0

82,080

12-Jan-2018

02:32

For all x64-based versions of systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2117.0

46,232

12-Jan-2018

02:30

Aspnet_perf.dll

4.7.2117.0

42,648

12-Jan-2018

02:30

aspnet_wp.exe

4.7.2117.0

50,784

12-Jan-2018

02:30

aspnet_wp.exe

4.7.2117.0

46,176

12-Jan-2018

02:30

clr.dll

4.7.2117.0

10,326,136

12-Jan-2018

02:30

clr.dll

4.7.2117.0

7,221,880

12-Jan-2018

02:30

clrjit.dll

4.7.2117.0

1,128,584

12-Jan-2018

02:30

clrjit.dll

4.7.2117.0

522,888

12-Jan-2018

02:30

compatjit.dll

4.7.2117.0

1,259,664

12-Jan-2018

02:30

dfdll.dll

4.7.2117.0

191,616

12-Jan-2018

02:30

dfdll.dll

4.7.2117.0

159,872

12-Jan-2018

02:30

GlobalUserInterface.CompositeFont

182,000

18-Oct-2017

02:32

mscordacwks.dll

4.7.2117.0

1,838,232

12-Jan-2018

02:30

mscordacwks.dll

4.7.2117.0

1,341,080

12-Jan-2018

02:30

mscordbi.dll

4.7.2117.0

1,618,576

12-Jan-2018

02:30

mscordbi.dll

4.7.2117.0

1,164,944

12-Jan-2018

02:30

mscoreei.dll

4.7.2117.0

636,048

12-Jan-2018

02:30

mscoreei.dll

4.7.2117.0

511,632

12-Jan-2018

02:30

mscorlib.dll

4.7.2117.0

5,401,736

12-Jan-2018

02:30

mscorlib.dll

4.7.2117.0

5,614,224

12-Jan-2018

02:30

msvcp120_clr0400.dll

12.0.52519.0

690,008

12-Jan-2018

02:51

msvcp120_clr0400.dll

12.0.52519.0

485,576

12-Jan-2018

02:32

msvcr120_clr0400.dll

12.0.52519.0

993,632

12-Jan-2018

02:51

msvcr120_clr0400.dll

12.0.52519.0

987,840

12-Jan-2018

02:32

VsVersion.dll

14.7.2563.0

19,096

12-Jan-2018

02:51

VsVersion.dll

14.7.2563.0

19,096

12-Jan-2018

02:32

peverify.dll

4.7.2117.0

260,240

12-Jan-2018

02:30

peverify.dll

4.7.2117.0

188,560

12-Jan-2018

02:30

PresentationCore.dll

4.7.2563.0

3,608,240

12-Jan-2018

02:51

PresentationCore.dll

4.7.2563.0

3,630,416

12-Jan-2018

02:32

PresentationFramework.dll

4.7.2563.0

6,210,912

12-Jan-2018

02:32

PresentationHost_v0400.dll

4.7.2563.0

252,104

12-Jan-2018

02:51

PresentationHost_v0400.dll.mui

4.7.2563.0

84,696

12-Jan-2018

02:51

PresentationHost_v0400.dll

4.7.2563.0

197,320

12-Jan-2018

02:32

PresentationHost_v0400.dll.mui

4.7.2563.0

84,696

12-Jan-2018

02:32

PresentationNative_v0400.dll

4.7.2563.0

1,109,712

12-Jan-2018

02:51

PresentationNative_v0400.dll

4.7.2563.0

827,088

12-Jan-2018

02:32

ServiceMonikerSupport.dll

4.7.2612.0

31,424

12-Jan-2018

02:30

ServiceMonikerSupport.dll

4.7.2612.0

29,376

12-Jan-2018

02:30

SMDiagnostics.dll

4.7.2612.0

73,376

12-Jan-2018

02:30

SOS.dll

4.7.2117.0

872,056

12-Jan-2018

02:30

SOS.dll

4.7.2117.0

743,544

12-Jan-2018

02:30

System.Activities.dll

4.7.2612.0

1,532,600

12-Jan-2018

02:30

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

12-Jan-2018

02:30

System.Core.dll

4.7.2563.0

1,482,304

12-Jan-2018

02:32

System.Data.Entity.dll

4.7.2117.0

4,034,232

12-Jan-2018

02:30

System.IdentityModel.dll

4.7.2612.0

1,088,720

12-Jan-2018

02:30

System.IdentityModel.Services.dll

4.7.2612.0

198,368

12-Jan-2018

02:30

System.Runtime.Serialization.dll

4.7.2612.0

1,054,464

12-Jan-2018

02:30

System.ServiceModel.Channels.dll

4.7.2612.0

157,920

12-Jan-2018

02:30

System.ServiceModel.Discovery.dll

4.7.2612.0

308,448

12-Jan-2018

02:30

System.ServiceModel.dll

4.7.2612.0

6,315,712

12-Jan-2018

02:30

System.ServiceModel.Internals.dll

4.7.2612.0

253,696

12-Jan-2018

02:30

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

12-Jan-2018

02:30

System.ServiceModel.WasHosting.dll

4.7.2612.0

39,656

12-Jan-2018

02:30

System.Web.ApplicationServices.dll

4.7.2117.0

70,920

12-Jan-2018

02:30

System.Web.Extensions.dll

4.7.2117.0

1,849,552

12-Jan-2018

02:30

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

12-Jan-2018

02:30

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

12-Jan-2018

02:30

System.Workflow.Runtime.dll

4.7.2117.0

499,400

12-Jan-2018

02:30

System.Runtime.Caching.dll

4.7.2117.0

109,928

12-Jan-2018

02:30

System.Data.dll

4.7.2117.0

3,455,128

12-Jan-2018

02:30

System.Data.dll

4.7.2117.0

3,391,128

12-Jan-2018

02:30

System.Data.SqlXml.dll

4.7.2612.0

734,400

12-Jan-2018

02:30

System.Deployment.dll

4.7.2117.0

845,496

12-Jan-2018

02:30

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

12-Jan-2018

02:30

System.dll

4.7.2117.0

3,525,376

12-Jan-2018

02:30

System.Drawing.dll

4.7.2117.0

599,344

12-Jan-2018

02:30

System.Management.dll

4.7.2117.0

415,416

12-Jan-2018

02:30

System.Runtime.Remoting.dll

4.7.2117.0

346,464

12-Jan-2018

02:30

System.Security.dll

4.7.2117.0

316,592

12-Jan-2018

02:30

System.Transactions.dll

4.7.2117.0

310,968

12-Jan-2018

02:30

System.Transactions.dll

4.7.2117.0

306,496

12-Jan-2018

02:30

System.Web.dll

4.7.2117.0

5,388,952

12-Jan-2018

02:30

System.Web.dll

4.7.2117.0

5,405,848

12-Jan-2018

02:30

System.Windows.Controls.Ribbon.dll

4.7.2563.0

742,632

12-Jan-2018

02:32

System.Windows.Forms.dll

4.7.2117.0

5,181,648

12-Jan-2018

02:30

System.Xaml.dll

4.7.2563.0

642,112

12-Jan-2018

02:32

System.XML.dll

4.7.2612.0

2,670,224

12-Jan-2018

02:30

UIAutomationClient.dll

4.7.2563.0

178,000

12-Jan-2018

02:32

UIAutomationClientsideProviders.dll

4.7.2563.0

361,352

12-Jan-2018

02:32

UIAutomationProvider.dll

4.7.2563.0

48,992

12-Jan-2018

02:32

UIAutomationTypes.dll

4.7.2563.0

221,008

12-Jan-2018

02:32

webengine.dll

4.7.2117.0

26,256

12-Jan-2018

02:30

webengine.dll

4.7.2117.0

24,720

12-Jan-2018

02:30

webengine4.dll

4.7.2117.0

667,800

12-Jan-2018

02:30

webengine4.dll

4.7.2117.0

550,040

12-Jan-2018

02:30

WindowsBase.dll

4.7.2563.0

1,289,528

12-Jan-2018

02:32

WMINet_Utils.dll

4.7.2117.0

188,064

12-Jan-2018

02:30

WMINet_Utils.dll

4.7.2117.0

136,344

12-Jan-2018

02:30

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

100,240

12-Jan-2018

02:30

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

12-Jan-2018

02:30

WPFFontCache_v0400.exe.mui

4.7.2563.0

19,144

12-Jan-2018

02:51

WPFFontCache_v0400.exe.mui

4.7.2563.0

19,144

12-Jan-2018

02:32

WPFFontCache_v0400.exe

4.7.2563.0

26,720

12-Jan-2018

02:51

WPFFontCache_v0400.exe

4.7.2563.0

25,704

12-Jan-2018

02:32

wpfgfx_v0400.dll

4.7.2563.0

1,764,000

12-Jan-2018

02:51

wpfgfx_v0400.dll

4.7.2563.0

1,345,184

12-Jan-2018

02:32

Placeholder.dll

4.7.2563.0

25,760

12-Jan-2018

02:51

Placeholder.dll

4.7.2563.0

24,728

12-Jan-2018

02:32

PenIMC2_v0400.dll

4.7.2563.0

98,464

12-Jan-2018

02:51

PenIMC2_v0400.dll

4.7.2563.0

82,080

12-Jan-2018

02:32

How to obtain help and support for this security update

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