Description of the Security and Quality Rollup for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows 7 SP1 and Server 2008 R2 SP1 and for .NET Framework 4.6 for Server 2008 SP2 (KB 4470640)

**Applies to:**Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6.1, Microsoft .NET Framework 4.6.2, Microsoft .NET Framework 4.7, Microsoft .NET Framework 4.7.1, Microsoft .NET Framework 4.7.2

Summary

This security update resolves a vulnerability in Microsoft .NET Framework that could allow remote code execution when Microsoft .NET Framework doesn’t validate input correctly. An attacker who successfully exploited this vulnerability could take control of an affected system. The attacker could then install programs; view, change, or delete data; or create new accounts that use full user rights. Users whose accounts are configured to have fewer user rights on the system could be less affected than users who are granted administrative user rights.To exploit the vulnerability, an attacker has to pass specific input to an application that uses susceptible .NET Framework methods.This security update addresses the vulnerability by correcting how .NET Framework validates input.To learn more about this vulnerability, see Microsoft Common Vulnerabilities and Exposures CVE-2018-8540.Important

• All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, and 4.7.1 require that the d3dcompiler_47.dll is 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 4019990 for Windows 7 SP1 and Windows Server 2008 R2 SP1. Or, 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

For more information about this security update as it relates to Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:4471987 Security and Quality Rollup updates for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB 4471987)For more information about this security update as it relates to Windows Server 2008 Service Pack 2 (SP2), see the following article in the Microsoft Knowledge Base:4471990 Security and Quality Rollup updates for .NET Framework 3.5 SP1, 4.5.2, and 4.6 for Windows Server 2008 SP2 (KB 4471990)

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. Select Start, selectAdministrative Tools, and then selectMicrosoft Windows Server Update Services 3.0.
2. Expand ComputerName, and then selectAction.
3. Select 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. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type4471987for Windows 7 SP1 and Windows Server 2008 R2 SP1 or type4471990for Windows Server 2008 SP2 in theSearchbox, and then selectSearch.
6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.
7. After you select all the packages that you need, select View Basket.
8. To import the packages to your WSUS server, select Import.
9. After the packages are imported, select Close to return to WSUS.
   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:20181211 Security update deployment information: December 11, 2018

Update removal information

Note We don’t 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 previously released updates KB 4457918, KB 4457921, KB 4467240, KB 4467243, KB 4467224, and KB 4467227.

File information

File hash

File name	SHA1 hash	SHA256 hash
NDP46-KB4470640-x86.exe	8331AB3DA07FB9CCBE5E600808F38E596BDB1DB9	6A86DCA40EF19BD116AD97E71D4A8CFE776C26124CF3F3DA81781AF6B3404609
NDP46-KB4470640-x64.exe	8E137B1F9BF1886438B88F8D2687AE9D7C790EE6	255F08B0490C84D6509A68AADED3E3B509125AF429EE9855560BD701706F9C09

File attributes for all supported x86-based systems

The English (United States) version of this update 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.File name	File version	File size	Date	Time
Aspnet_perf.dll	4.7.3282.0	42,792	07-Nov-2018	03:41
aspnet_wp.exe	4.7.3282.0	46,088	07-Nov-2018	03:41
clr.dll	4.7.3260.0	7,249,632	07-Nov-2018	03:37
clrjit.dll	4.7.3260.0	522,984	07-Nov-2018	03:37
dfdll.dll	4.7.3221.0	159,952	07-Nov-2018	03:37
GlobalUserInterface.CompositeFont		186,009	07-Nov-2018	03:37
mscordacwks.dll	4.7.3260.0	1,343,232	07-Nov-2018	03:37
mscordbi.dll	4.7.3260.0	1,169,136	07-Nov-2018	03:37
mscoreei.dll	4.7.3221.0	511,712	07-Nov-2018	03:37
mscorlib.dll	4.7.3260.0	5,641,504	07-Nov-2018	03:37
msvcp120_clr0400.dll	12.0.52519.0	485,576	07-Nov-2018	03:41
msvcr120_clr0400.dll	12.0.52519.0	987,840	07-Nov-2018	03:41
VsVersion.dll	14.7.3221.0	19,168	07-Nov-2018	03:37
peverify.dll	4.7.3260.0	188,656	07-Nov-2018	03:37
PresentationCore.dll	4.7.3221.0	3,637,472	07-Nov-2018	03:37
PresentationFramework.dll	4.7.3221.0	6,237,432	07-Nov-2018	03:37
PresentationFramework-SystemData.dll	4.7.3221.0	24,392	07-Nov-2018	03:37
PresentationHost_v0400.dll	4.7.3221.0	214,296	07-Nov-2018	03:37
PresentationHost_v0400.dll.mui	4.7.3221.0	84,776	07-Nov-2018	03:37
PresentationNative_v0400.dll	4.7.3221.0	827,168	07-Nov-2018	03:37
ServiceMonikerSupport.dll	4.7.3260.0	29,504	07-Nov-2018	03:37
SMDiagnostics.dll	4.7.3260.0	74,096	07-Nov-2018	03:37
SOS.dll	4.7.3260.0	743,648	07-Nov-2018	03:37
System.Activities.dll	4.7.3260.0	1,532,800	07-Nov-2018	03:37
System.ComponentModel.DataAnnotations.dll	4.7.3221.0	127,400	07-Nov-2018	03:37
System.Core.dll	4.7.3221.0	1,552,144	07-Nov-2018	03:37
System.Data.Entity.dll	4.7.3221.0	4,035,664	07-Nov-2018	03:37
System.DirectoryServices.AccountManagement.dll	4.7.3221.0	297,648	07-Nov-2018	03:37
System.IdentityModel.dll	4.7.3260.0	1,090,456	07-Nov-2018	03:37
System.IdentityModel.Services.dll	4.7.3260.0	198,472	07-Nov-2018	03:37
System.Runtime.Serialization.dll	4.7.3260.0	1,056,712	07-Nov-2018	03:37
System.ServiceModel.Channels.dll	4.7.3260.0	158,040	07-Nov-2018	03:37
System.ServiceModel.Discovery.dll	4.7.3260.0	308,576	07-Nov-2018	03:37
System.ServiceModel.dll	4.7.3260.0	6,322,576	07-Nov-2018	03:37
System.ServiceModel.Internals.dll	4.7.3260.0	261,064	07-Nov-2018	03:37
System.ServiceModel.Routing.dll	4.7.3221.0	132,208	07-Nov-2018	03:37
System.ServiceModel.WasHosting.dll	4.7.3260.0	39,752	07-Nov-2018	03:37
System.Web.ApplicationServices.dll	4.7.3282.0	71,120	07-Nov-2018	03:41
System.Web.Extensions.dll	4.7.3282.0	1,850,264	07-Nov-2018	03:41
System.Workflow.Activities.dll	4.7.3221.0	1,052,784	07-Nov-2018	03:37
System.Workflow.ComponentModel.dll	4.7.3221.0	1,545,856	07-Nov-2018	03:37
System.Workflow.Runtime.dll	4.7.3221.0	500,320	07-Nov-2018	03:37
System.Runtime.Caching.dll	4.7.3221.0	109,864	07-Nov-2018	03:37
System.Data.dll	4.7.3260.0	3,462,912	07-Nov-2018	03:37
System.Data.SqlXml.dll	4.7.3221.0	734,520	07-Nov-2018	03:37
System.Deployment.dll	4.7.3221.0	879,408	07-Nov-2018	03:37
System.DirectoryServices.Protocols.dll	4.7.3221.0	201,624	07-Nov-2018	03:37
System.dll	4.7.3221.0	3,556,080	07-Nov-2018	03:37
System.Drawing.dll	4.7.3221.0	600,864	07-Nov-2018	03:37
System.Management.dll	4.7.3221.0	415,536	07-Nov-2018	03:37
System.Net.Http.dll	4.7.3221.0	204,584	07-Nov-2018	03:37
System.Runtime.Remoting.dll	4.7.3221.0	347,472	07-Nov-2018	03:37
System.Security.dll	4.7.3221.0	325,928	07-Nov-2018	03:37
System.Transactions.dll	4.7.3221.0	309,328	07-Nov-2018	03:37
System.Web.dll	4.7.3282.0	5,416,232	07-Nov-2018	03:41
System.Windows.Controls.Ribbon.dll	4.7.3221.0	742,720	07-Nov-2018	03:37
System.Windows.Forms.dll	4.7.3221.0	5,237,056	07-Nov-2018	03:37
System.Xaml.dll	4.7.3221.0	642,320	07-Nov-2018	03:37
System.Xml.dll	4.7.3221.0	2,670,344	07-Nov-2018	03:37
UIAutomationClient.dll	4.7.3221.0	179,432	07-Nov-2018	03:37
UIAutomationClientsideProviders.dll	4.7.3221.0	362,784	07-Nov-2018	03:37
UIAutomationProvider.dll	4.7.3221.0	50,416	07-Nov-2018	03:37
UIAutomationTypes.dll	4.7.3221.0	222,440	07-Nov-2018	03:37
webengine.dll	4.7.3282.0	24,840	07-Nov-2018	03:41
webengine4.dll	4.7.3282.0	550,152	07-Nov-2018	03:41
WindowsBase.dll	4.7.3221.0	1,293,520	07-Nov-2018	03:37
WMINet_Utils.dll	4.7.3221.0	136,432	07-Nov-2018	03:37
WorkflowServiceHostPerformanceCounters.dll	4.7.3221.0	89,432	07-Nov-2018	03:37
WPFFontCache_v0400.exe.mui	4.7.3221.0	19,224	07-Nov-2018	03:37
WPFFontCache_v0400.exe	4.7.3221.0	25,784	07-Nov-2018	03:37
wpfgfx_v0400.dll	4.7.3221.0	1,345,264	07-Nov-2018	03:37
Placeholder.dll	4.7.3221.0	24,808	07-Nov-2018	03:37
PenIMC2_v0400.dll	4.7.3221.0	86,256	07-Nov-2018	03:37

File attributes for all supported x64-based systems

The English (United States) version of this update 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.File name	File version	File size	Date	Time
Aspnet_perf.dll	4.7.3282.0	46,144	07-Nov-2018	04:01
Aspnet_perf.dll	4.7.3282.0	42,792	07-Nov-2018	03:41
aspnet_wp.exe	4.7.3282.0	50,904	07-Nov-2018	04:02
aspnet_wp.exe	4.7.3282.0	46,088	07-Nov-2018	03:41
clr.dll	4.7.3260.0	10,378,480	07-Nov-2018	03:37
clr.dll	4.7.3260.0	7,249,632	07-Nov-2018	03:37
clrjit.dll	4.7.3260.0	1,221,888	07-Nov-2018	03:37
clrjit.dll	4.7.3260.0	522,984	07-Nov-2018	03:37
compatjit.dll	4.7.3260.0	1,259,784	07-Nov-2018	03:37
dfdll.dll	4.7.3221.0	191,696	07-Nov-2018	03:37
dfdll.dll	4.7.3221.0	159,952	07-Nov-2018	03:37
GlobalUserInterface.CompositeFont		186,009	07-Nov-2018	03:37
mscordacwks.dll	4.7.3260.0	1,840,400	07-Nov-2018	03:37
mscordacwks.dll	4.7.3260.0	1,343,232	07-Nov-2018	03:37
mscordbi.dll	4.7.3260.0	1,622,280	07-Nov-2018	03:37
mscordbi.dll	4.7.3260.0	1,169,136	07-Nov-2018	03:37
mscoreei.dll	4.7.3221.0	630,496	07-Nov-2018	03:37
mscoreei.dll	4.7.3221.0	511,712	07-Nov-2018	03:37
mscorlib.dll	4.7.3260.0	5,421,808	07-Nov-2018	03:37
mscorlib.dll	4.7.3260.0	5,641,504	07-Nov-2018	03:37
msvcp120_clr0400.dll	12.0.52519.0	690,008	07-Nov-2018	04:02
msvcp120_clr0400.dll	12.0.52519.0	485,576	07-Nov-2018	03:41
msvcr120_clr0400.dll	12.0.52519.0	993,632	07-Nov-2018	04:02
msvcr120_clr0400.dll	12.0.52519.0	987,840	07-Nov-2018	03:41
VsVersion.dll	14.7.3221.0	19,168	07-Nov-2018	03:37
VsVersion.dll	14.7.3221.0	19,168	07-Nov-2018	03:37
peverify.dll	4.7.3260.0	260,360	07-Nov-2018	03:37
peverify.dll	4.7.3260.0	188,656	07-Nov-2018	03:37
PresentationCore.dll	4.7.3221.0	3,613,472	07-Nov-2018	03:37
PresentationCore.dll	4.7.3221.0	3,637,472	07-Nov-2018	03:37
PresentationFramework.dll	4.7.3221.0	6,237,432	07-Nov-2018	03:37
PresentationFramework-SystemData.dll	4.7.3221.0	24,392	07-Nov-2018	03:37
PresentationHost_v0400.dll	4.7.3221.0	277,784	07-Nov-2018	03:37
PresentationHost_v0400.dll.mui	4.7.3221.0	84,776	07-Nov-2018	03:37
PresentationHost_v0400.dll	4.7.3221.0	214,296	07-Nov-2018	03:37
PresentationHost_v0400.dll.mui	4.7.3221.0	84,776	07-Nov-2018	03:37
PresentationNative_v0400.dll	4.7.3221.0	1,109,792	07-Nov-2018	03:37
PresentationNative_v0400.dll	4.7.3221.0	827,168	07-Nov-2018	03:37
ServiceMonikerSupport.dll	4.7.3260.0	31,552	07-Nov-2018	03:37
ServiceMonikerSupport.dll	4.7.3260.0	29,504	07-Nov-2018	03:37
SMDiagnostics.dll	4.7.3260.0	74,096	07-Nov-2018	03:37
SOS.dll	4.7.3260.0	872,176	07-Nov-2018	03:37
SOS.dll	4.7.3260.0	743,648	07-Nov-2018	03:37
System.Activities.dll	4.7.3260.0	1,532,800	07-Nov-2018	03:37
System.ComponentModel.DataAnnotations.dll	4.7.3221.0	127,400	07-Nov-2018	03:37
System.Core.dll	4.7.3221.0	1,552,144	07-Nov-2018	03:37
System.Data.Entity.dll	4.7.3221.0	4,035,664	07-Nov-2018	03:37
System.DirectoryServices.AccountManagement.dll	4.7.3221.0	297,648	07-Nov-2018	03:37
System.IdentityModel.dll	4.7.3260.0	1,090,456	07-Nov-2018	03:37
System.IdentityModel.Services.dll	4.7.3260.0	198,472	07-Nov-2018	03:37
System.Runtime.Serialization.dll	4.7.3260.0	1,056,712	07-Nov-2018	03:37
System.ServiceModel.Channels.dll	4.7.3260.0	158,040	07-Nov-2018	03:37
System.ServiceModel.Discovery.dll	4.7.3260.0	308,576	07-Nov-2018	03:37
System.ServiceModel.dll	4.7.3260.0	6,322,576	07-Nov-2018	03:37
System.ServiceModel.Internals.dll	4.7.3260.0	261,064	07-Nov-2018	03:37
System.ServiceModel.Routing.dll	4.7.3221.0	132,208	07-Nov-2018	03:37
System.ServiceModel.WasHosting.dll	4.7.3260.0	39,752	07-Nov-2018	03:37
System.Web.ApplicationServices.dll	4.7.3282.0	71,120	07-Nov-2018	03:41
System.Web.Extensions.dll	4.7.3282.0	1,850,264	07-Nov-2018	03:41
System.Workflow.Activities.dll	4.7.3221.0	1,052,784	07-Nov-2018	03:37
System.Workflow.ComponentModel.dll	4.7.3221.0	1,545,856	07-Nov-2018	03:37
System.Workflow.Runtime.dll	4.7.3221.0	500,320	07-Nov-2018	03:37
System.Runtime.Caching.dll	4.7.3221.0	109,864	07-Nov-2018	03:37
System.Data.dll	4.7.3260.0	3,524,864	07-Nov-2018	03:37
System.Data.dll	4.7.3260.0	3,462,912	07-Nov-2018	03:37
System.Data.SqlXml.dll	4.7.3221.0	734,520	07-Nov-2018	03:37
System.Deployment.dll	4.7.3221.0	879,408	07-Nov-2018	03:37
System.DirectoryServices.Protocols.dll	4.7.3221.0	201,624	07-Nov-2018	03:37
System.dll	4.7.3221.0	3,556,080	07-Nov-2018	03:37
System.Drawing.dll	4.7.3221.0	600,864	07-Nov-2018	03:37
System.Management.dll	4.7.3221.0	415,536	07-Nov-2018	03:37
System.Net.Http.dll	4.7.3221.0	204,584	07-Nov-2018	03:37
System.Runtime.Remoting.dll	4.7.3221.0	347,472	07-Nov-2018	03:37
System.Security.dll	4.7.3221.0	325,928	07-Nov-2018	03:37
System.Transactions.dll	4.7.3221.0	311,048	07-Nov-2018	03:37
System.Transactions.dll	4.7.3221.0	309,328	07-Nov-2018	03:37
System.Web.dll	4.7.3282.0	5,398,280	07-Nov-2018	04:02
System.Web.dll	4.7.3282.0	5,416,232	07-Nov-2018	03:41
System.Windows.Controls.Ribbon.dll	4.7.3221.0	742,720	07-Nov-2018	03:37
System.Windows.Forms.dll	4.7.3221.0	5,237,056	07-Nov-2018	03:37
System.Xaml.dll	4.7.3221.0	642,320	07-Nov-2018	03:37
System.XML.dll	4.7.3221.0	2,670,344	07-Nov-2018	03:37
UIAutomationClient.dll	4.7.3221.0	179,432	07-Nov-2018	03:37
UIAutomationClientsideProviders.dll	4.7.3221.0	362,784	07-Nov-2018	03:37
UIAutomationProvider.dll	4.7.3221.0	50,416	07-Nov-2018	03:37
UIAutomationTypes.dll	4.7.3221.0	222,440	07-Nov-2018	03:37
webengine.dll	4.7.3282.0	26,168	07-Nov-2018	04:02
webengine.dll	4.7.3282.0	24,840	07-Nov-2018	03:41
webengine4.dll	4.7.3282.0	667,192	07-Nov-2018	04:02
webengine4.dll	4.7.3282.0	550,152	07-Nov-2018	03:41
WindowsBase.dll	4.7.3221.0	1,293,520	07-Nov-2018	03:37
WMINet_Utils.dll	4.7.3221.0	188,144	07-Nov-2018	03:37
WMINet_Utils.dll	4.7.3221.0	136,432	07-Nov-2018	03:37
WorkflowServiceHostPerformanceCounters.dll	4.7.3221.0	101,208	07-Nov-2018	03:37
WorkflowServiceHostPerformanceCounters.dll	4.7.3221.0	89,432	07-Nov-2018	03:37
WPFFontCache_v0400.exe.mui	4.7.3221.0	19,224	07-Nov-2018	03:37
WPFFontCache_v0400.exe.mui	4.7.3221.0	19,224	07-Nov-2018	03:37
WPFFontCache_v0400.exe	4.7.3221.0	26,800	07-Nov-2018	03:37
WPFFontCache_v0400.exe	4.7.3221.0	25,784	07-Nov-2018	03:37
wpfgfx_v0400.dll	4.7.3221.0	1,764,592	07-Nov-2018	03:37
wpfgfx_v0400.dll	4.7.3221.0	1,345,264	07-Nov-2018	03:37
Placeholder.dll	4.7.3221.0	25,832	07-Nov-2018	03:37
Placeholder.dll	4.7.3221.0	24,808	07-Nov-2018	03:37
PenIMC2_v0400.dll	4.7.3221.0	104,688	07-Nov-2018	03:37
PenIMC2_v0400.dll	4.7.3221.0	86,256	07-Nov-2018	03:37

How to obtain help and support for this security update

• Help for installing updates: Windows Update FAQ
• Protect yourself online and at home: Windows Security support
• Local support according to your country: International Support