Description of the Security and Quality Rollup for .NET Framework 4.6 on Windows Server 2008 SP2 (KB 4055002)

NoticeAs 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, clickAdministrative Tools, and then clickMicrosoft Windows Server Update Services 3.0.
2. Expand ComputerName, and then clickAction.
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. Enter4055532into theSearchbox, and then clickSearch.
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 thePrograms 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:

• For Windows Server 2008 SP2: Updates KB 4049019 and KB 4041086.

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 systemsFile 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 systemsFile 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

• Help for installing updates: Windows Update FAQ
• Security solutions for IT professionals: TechNet Security Support and Troubleshooting
• Help for protecting your Windows-based products and services from viruses and malware: Microsoft Secure
• Local support according to your country: International Support