Notice

As of January 18, 2018, update 4055002 applies only to Windows Server 2008 SP2. For more information about the January 2018 Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Windows Server R2 SP1, see the following Knowledge Base article: 

4074880 - Description of the Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 for Windows 7 SP1 and Server 2008 R2 SP1 (KB 4074880). 

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 require that the d3dcompiler_47.dll update be installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll update, see KB 4019478 for Windows Server 2008 SP2.

  • 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. This update changes this process so that the certificate chain validation fails if the root certificate is disabled. This is in addition to requiring the appropriate client or server EKU on certificates.

    If certificates are used for authentication, the authenticator examines the certificate that is provided by the remote endpoint and looks for the correct purpose object identifier in Application Policies extensions. If 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.

    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 value 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 Server 2008 SP2, see the following article in the Microsoft Knowledge Base:

4055267 Security and Quality Rollup for the .NET Framework 2.0 SP2, 3.0 SP2, 4.5.2, and 4.6 updates for Windows Server 2008 SP2 (KB 4055267)

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 the following updates:

 

File information

File hash

Package name

PackageHashSHA1

PackageHashSHA2

NDP47-KB4055002-x64.exe

2DF49345A8319C622A236CA467C030AAC3B77918

44D12D5A0CDC419EE79086C7AFD0B315F7E3971580F42AA89714C421BE50CC15

NDP47-KB4055002-x86.exe

36E112DAD5BD5177A4432208D6F6DCFE7413AE51

EBD34CCA8DDDD5824295348D5C9454A343C45F22DD27BE996E3F159E33D26844


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 times for these files are listed in Coordinated Universal Time (UTC). The dates and 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 times may change when you perform certain operations on the files.

For all x86-based systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2117.0

42,648

29-Dec-2017

17:47

aspnet_wp.exe

4.7.2117.0

46,176

29-Dec-2017

17:47

clr.dll

4.7.2117.0

7,221,880

29-Dec-2017

17:47

clrjit.dll

4.7.2117.0

522,888

29-Dec-2017

17:47

dfdll.dll

4.7.2117.0

159,872

29-Dec-2017

17:47

GlobalUserInterface.CompositeFont

116,922

29-Dec-2017

17:47

mscordacwks.dll

4.7.2117.0

1,341,080

29-Dec-2017

17:47

mscordbi.dll

4.7.2117.0

1,164,944

29-Dec-2017

17:47

mscoreei.dll

4.7.2117.0

511,632

29-Dec-2017

17:47

mscorlib.dll

4.7.2117.0

5,614,224

29-Dec-2017

17:47

msvcp120_clr0400.dll

12.0.52519.0

485,576

29-Dec-2017

17:49

msvcr120_clr0400.dll

12.0.52519.0

987,840

29-Dec-2017

17:49

VsVersion.dll

14.7.2117.0

19,088

29-Dec-2017

17:47

peverify.dll

4.7.2117.0

188,560

29-Dec-2017

17:47

PresentationCore.dll

4.7.2117.0

3,618,632

29-Dec-2017

17:47

PresentationFramework.dll

4.7.2117.0

6,200,160

29-Dec-2017

17:47

PresentationHost_v0400.dll

4.7.2117.0

197,320

29-Dec-2017

17:47

PresentationHost_v0400.dll.mui

4.7.2117.0

84,696

29-Dec-2017

17:47

PresentationNative_v0400.dll

4.7.2117.0

827,088

29-Dec-2017

17:47

ServiceMonikerSupport.dll

4.7.2612.0

29,376

29-Dec-2017

17:49

SMDiagnostics.dll

4.7.2612.0

73,376

29-Dec-2017

17:49

SOS.dll

4.7.2117.0

743,544

29-Dec-2017

17:47

System.Activities.dll

4.7.2612.0

1,532,600

29-Dec-2017

17:49

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

29-Dec-2017

17:47

System.Core.dll

4.7.2117.0

1,381,528

29-Dec-2017

17:47

System.Data.Entity.dll

4.7.2117.0

4,034,232

29-Dec-2017

17:47

System.IdentityModel.dll

4.7.2612.0

1,088,720

29-Dec-2017

17:49

System.IdentityModel.Services.dll

4.7.2612.0

198,368

29-Dec-2017

17:49

System.Runtime.Serialization.dll

4.7.2612.0

1,054,464

29-Dec-2017

17:49

System.ServiceModel.Channels.dll

4.7.2612.0

157,920

29-Dec-2017

17:49

System.ServiceModel.Discovery.dll

4.7.2612.0

308,448

29-Dec-2017

17:49

System.ServiceModel.dll

4.7.2612.0

6,315,712

29-Dec-2017

17:49

System.ServiceModel.Internals.dll

4.7.2612.0

253,696

29-Dec-2017

17:49

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

29-Dec-2017

17:47

System.ServiceModel.WasHosting.dll

4.7.2612.0

39,656

29-Dec-2017

17:49

System.Web.ApplicationServices.dll

4.7.2117.0

70,920

29-Dec-2017

17:47

System.Web.Extensions.dll

4.7.2117.0

1,849,552

29-Dec-2017

17:47

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

29-Dec-2017

17:47

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

29-Dec-2017

17:47

System.Workflow.Runtime.dll

4.7.2117.0

499,400

29-Dec-2017

17:47

System.Runtime.Caching.dll

4.7.2117.0

109,928

29-Dec-2017

17:47

System.Data.dll

4.7.2117.0

3,391,128

29-Dec-2017

17:47

System.Data.SqlXml.dll

4.7.2612.0

734,400

29-Dec-2017

17:49

System.Deployment.dll

4.7.2117.0

845,496

29-Dec-2017

17:47

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

29-Dec-2017

17:47

System.dll

4.7.2117.0

3,525,376

29-Dec-2017

17:47

System.Drawing.dll

4.7.2117.0

599,344

29-Dec-2017

17:47

System.Management.dll

4.7.2117.0

415,416

29-Dec-2017

17:47

System.Runtime.Remoting.dll

4.7.2117.0

346,464

29-Dec-2017

17:47

System.Security.dll

4.7.2117.0

316,592

29-Dec-2017

17:47

System.Transactions.dll

4.7.2117.0

306,496

29-Dec-2017

17:47

System.Web.dll

4.7.2117.0

5,405,848

29-Dec-2017

17:47

System.Windows.Controls.Ribbon.dll

4.7.2117.0

742,792

29-Dec-2017

17:47

System.Windows.Forms.dll

4.7.2117.0

5,181,648

29-Dec-2017

17:47

System.Xaml.dll

4.7.2117.0

641,168

29-Dec-2017

17:47

System.Xml.dll

4.7.2612.0

2,670,224

29-Dec-2017

17:49

webengine.dll

4.7.2117.0

24,720

29-Dec-2017

17:47

webengine4.dll

4.7.2117.0

550,040

29-Dec-2017

17:47

WindowsBase.dll

4.7.2117.0

1,283,896

29-Dec-2017

17:47

WMINet_Utils.dll

4.7.2117.0

136,344

29-Dec-2017

17:47

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

29-Dec-2017

17:47

WPFFontCache_v0400.exe.mui

4.7.2117.0

19,144

29-Dec-2017

17:47

WPFFontCache_v0400.exe

4.7.2117.0

25,696

29-Dec-2017

17:47

wpfgfx_v0400.dll

4.7.2117.0

1,344,672

29-Dec-2017

17:47

Placeholder.dll

4.7.2117.0

24,728

29-Dec-2017

17:47

PenIMC2_v0400.dll

4.7.2117.0

82,080

29-Dec-2017

17:47

For all x64-based systems

File name

File version

File size

Date

Time

Aspnet_perf.dll

4.7.2117.0

46,232

29-Dec-2017

18:08

Aspnet_perf.dll

4.7.2117.0

42,648

29-Dec-2017

17:47

aspnet_wp.exe

4.7.2117.0

50,784

29-Dec-2017

18:08

aspnet_wp.exe

4.7.2117.0

46,176

29-Dec-2017

17:47

clr.dll

4.7.2117.0

10,326,136

29-Dec-2017

18:08

clr.dll

4.7.2117.0

7,221,880

29-Dec-2017

17:47

clrjit.dll

4.7.2117.0

1,128,584

29-Dec-2017

18:08

clrjit.dll

4.7.2117.0

522,888

29-Dec-2017

17:47

compatjit.dll

4.7.2117.0

1,259,664

29-Dec-2017

18:08

dfdll.dll

4.7.2117.0

191,616

29-Dec-2017

18:08

dfdll.dll

4.7.2117.0

159,872

29-Dec-2017

17:47

GlobalUserInterface.CompositeFont

116,922

29-Dec-2017

17:47

mscordacwks.dll

4.7.2117.0

1,838,232

29-Dec-2017

18:08

mscordacwks.dll

4.7.2117.0

1,341,080

29-Dec-2017

17:47

mscordbi.dll

4.7.2117.0

1,618,576

29-Dec-2017

18:08

mscordbi.dll

4.7.2117.0

1,164,944

29-Dec-2017

17:47

mscoreei.dll

4.7.2117.0

636,048

29-Dec-2017

18:08

mscoreei.dll

4.7.2117.0

511,632

29-Dec-2017

17:47

mscorlib.dll

4.7.2117.0

5,401,736

29-Dec-2017

18:08

mscorlib.dll

4.7.2117.0

5,614,224

29-Dec-2017

17:47

msvcp120_clr0400.dll

12.0.52519.0

690,008

29-Dec-2017

18:08

msvcp120_clr0400.dll

12.0.52519.0

485,576

29-Dec-2017

17:49

msvcr120_clr0400.dll

12.0.52519.0

993,632

29-Dec-2017

18:08

msvcr120_clr0400.dll

12.0.52519.0

987,840

29-Dec-2017

17:49

VsVersion.dll

14.7.2117.0

19,088

29-Dec-2017

18:08

VsVersion.dll

14.7.2117.0

19,088

29-Dec-2017

17:47

peverify.dll

4.7.2117.0

260,240

29-Dec-2017

18:08

peverify.dll

4.7.2117.0

188,560

29-Dec-2017

17:47

PresentationCore.dll

4.7.2117.0

3,592,880

29-Dec-2017

18:08

PresentationCore.dll

4.7.2117.0

3,618,632

29-Dec-2017

17:47

PresentationFramework.dll

4.7.2117.0

6,200,160

29-Dec-2017

17:47

PresentationHost_v0400.dll

4.7.2117.0

256,712

29-Dec-2017

18:08

PresentationHost_v0400.dll.mui

4.7.2117.0

84,696

29-Dec-2017

18:08

PresentationHost_v0400.dll

4.7.2117.0

197,320

29-Dec-2017

17:47

PresentationHost_v0400.dll.mui

4.7.2117.0

84,696

29-Dec-2017

17:47

PresentationNative_v0400.dll

4.7.2117.0

1,109,712

29-Dec-2017

18:08

PresentationNative_v0400.dll

4.7.2117.0

827,088

29-Dec-2017

17:47

ServiceMonikerSupport.dll

4.7.2612.0

31,424

29-Dec-2017

18:08

ServiceMonikerSupport.dll

4.7.2612.0

29,376

29-Dec-2017

17:49

SMDiagnostics.dll

4.7.2612.0

73,376

29-Dec-2017

17:49

SOS.dll

4.7.2117.0

872,056

29-Dec-2017

18:08

SOS.dll

4.7.2117.0

743,544

29-Dec-2017

17:47

System.Activities.dll

4.7.2612.0

1,532,600

29-Dec-2017

17:49

System.ComponentModel.DataAnnotations.dll

4.7.2117.0

124,480

29-Dec-2017

17:47

System.Core.dll

4.7.2117.0

1,381,528

29-Dec-2017

17:47

System.Data.Entity.dll

4.7.2117.0

4,034,232

29-Dec-2017

17:47

System.IdentityModel.dll

4.7.2612.0

1,088,720

29-Dec-2017

17:49

System.IdentityModel.Services.dll

4.7.2612.0

198,368

29-Dec-2017

17:49

System.Runtime.Serialization.dll

4.7.2612.0

1,054,464

29-Dec-2017

17:49

System.ServiceModel.Channels.dll

4.7.2612.0

157,920

29-Dec-2017

17:49

System.ServiceModel.Discovery.dll

4.7.2612.0

308,448

29-Dec-2017

17:49

System.ServiceModel.dll

4.7.2612.0

6,315,712

29-Dec-2017

17:49

System.ServiceModel.Internals.dll

4.7.2612.0

253,696

29-Dec-2017

17:49

System.ServiceModel.Routing.dll

4.7.2117.0

130,776

29-Dec-2017

17:47

System.ServiceModel.WasHosting.dll

4.7.2612.0

39,656

29-Dec-2017

17:49

System.Web.ApplicationServices.dll

4.7.2117.0

70,920

29-Dec-2017

17:47

System.Web.Extensions.dll

4.7.2117.0

1,849,552

29-Dec-2017

17:47

System.Workflow.Activities.dll

4.7.2117.0

1,051,352

29-Dec-2017

17:47

System.Workflow.ComponentModel.dll

4.7.2117.0

1,541,864

29-Dec-2017

17:47

System.Workflow.Runtime.dll

4.7.2117.0

499,400

29-Dec-2017

17:47

System.Runtime.Caching.dll

4.7.2117.0

109,928

29-Dec-2017

17:47

System.Data.dll

4.7.2117.0

3,455,128

29-Dec-2017

18:08

System.Data.dll

4.7.2117.0

3,391,128

29-Dec-2017

17:47

System.Data.SqlXml.dll

4.7.2612.0

734,400

29-Dec-2017

17:49

System.Deployment.dll

4.7.2117.0

845,496

29-Dec-2017

17:47

System.DirectoryServices.Protocols.dll

4.7.2117.0

200,616

29-Dec-2017

17:47

System.dll

4.7.2117.0

3,525,376

29-Dec-2017

17:47

System.Drawing.dll

4.7.2117.0

599,344

29-Dec-2017

17:47

System.Management.dll

4.7.2117.0

415,416

29-Dec-2017

17:47

System.Runtime.Remoting.dll

4.7.2117.0

346,464

29-Dec-2017

17:47

System.Security.dll

4.7.2117.0

316,592

29-Dec-2017

17:47

System.Transactions.dll

4.7.2117.0

310,968

29-Dec-2017

18:08

System.Transactions.dll

4.7.2117.0

306,496

29-Dec-2017

17:47

System.Web.dll

4.7.2117.0

5,388,952

29-Dec-2017

18:08

System.Web.dll

4.7.2117.0

5,405,848

29-Dec-2017

17:47

System.Windows.Controls.Ribbon.dll

4.7.2117.0

742,792

29-Dec-2017

17:47

System.Windows.Forms.dll

4.7.2117.0

5,181,648

29-Dec-2017

17:47

System.Xaml.dll

4.7.2117.0

641,168

29-Dec-2017

17:47

System.XML.dll

4.7.2612.0

2,670,224

29-Dec-2017

17:49

webengine.dll

4.7.2117.0

26,256

29-Dec-2017

18:08

webengine.dll

4.7.2117.0

24,720

29-Dec-2017

17:47

webengine4.dll

4.7.2117.0

667,800

29-Dec-2017

18:08

webengine4.dll

4.7.2117.0

550,040

29-Dec-2017

17:47

WindowsBase.dll

4.7.2117.0

1,283,896

29-Dec-2017

17:47

WMINet_Utils.dll

4.7.2117.0

188,064

29-Dec-2017

18:08

WMINet_Utils.dll

4.7.2117.0

136,344

29-Dec-2017

17:47

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

100,240

29-Dec-2017

18:08

WorkflowServiceHostPerformanceCounters.dll

4.7.2117.0

88,464

29-Dec-2017

17:47

WPFFontCache_v0400.exe.mui

4.7.2117.0

19,144

29-Dec-2017

18:08

WPFFontCache_v0400.exe.mui

4.7.2117.0

19,144

29-Dec-2017

17:47

WPFFontCache_v0400.exe

4.7.2117.0

26,720

29-Dec-2017

18:08

WPFFontCache_v0400.exe

4.7.2117.0

25,696

29-Dec-2017

17:47

wpfgfx_v0400.dll

4.7.2117.0

1,765,024

29-Dec-2017

18:08

wpfgfx_v0400.dll

4.7.2117.0

1,344,672

29-Dec-2017

17:47

Placeholder.dll

4.7.2117.0

25,752

29-Dec-2017

18:08

Placeholder.dll

4.7.2117.0

24,728

29-Dec-2017

17:47

PenIMC2_v0400.dll

4.7.2117.0

98,976

29-Dec-2017

18:08

PenIMC2_v0400.dll

4.7.2117.0

82,080

29-Dec-2017

17:47

How to obtain help and support for this security update

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