Applies to:

Microsoft .NET Framework 4.8

Summary

A remote code execution vulnerability exists in .NET software when the software fails to check the source markup of a file. An Authentication Bypass vulnerability exists in WCF and WIF, allowing signing of SAML tokens with arbitrary symmetric keys. This vulnerability allows an attacker to impersonate another user. The vulnerability exists in WCF, WIF 3.5 and above in .NET Framework, WIF 1.0 component in Windows, WIF Nuget package, and WIF implementation in Sharepoint. An information disclosure vulnerability exists when Exchange and Azure Active Directory allow creation of entities with Display Names having non-printable characters.

To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

  • 4507421 Description of the Security and Quality Rollup for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8 for Windows Server 2012 (KB4507421)

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: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog.

Method 3: Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then select Action.

  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. Type 4507421 into the Search box, and then select Search.

  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 require, 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:

20190709 Security update deployment information: July 9, 2019

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 4499407 and 4503866.


File information
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.

Windows Server 2012 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File information

File hash information

File name

SHA1 hash

SHA256 hash

Windows8-RT-KB4506992-x64.msu

A0D3059B29E314DE4F32AA52BDB6F6E86BF7A4A1

0813038998C7A40A8BFDB682E351D65585A08CB963EC612118EAE80CE33A1538

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

Mscorlib.dll

4.8.3801.0

5,436,968

09-Apr-2019

03:24

x64

None

Not applicable

Normidna.nlp

Not applicable

59,342

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

47,076

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

40,566

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

67,808

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

61,718

27-Sep-2018

20:42

Not applicable

None

Not applicable

Aspnet_perf.dll

4.8.3815.0

48,680

15-May-2019

03:08

x64

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

15-May-2019

01:38

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

15-May-2019

03:09

Not applicable

SPN

AMD64_NETFX4-ASP

Aspnet_wp.exe

4.8.3815.0

52,288

15-May-2019

03:08

x64

SPN

AMD64_NETFX4-ASP

Clrjit.dll

4.8.3801.0

1,364,528

09-Apr-2019

03:24

x64

None

Not applicable

Clr.dll

4.8.3801.0

11,268,656

09-Apr-2019

03:24

x64

None

Not applicable

Compatjit.dll

4.8.3801.0

1,280,048

09-Apr-2019

03:24

x64

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

15-Mar-2019

00:44

Not applicable

SPA

AMD64_NETFX4-GLOBALMONOSP

Globalsansserif.compositefont

Not applicable

26,489

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

06-May-2019

06:58

Not applicable

None

Not applicable

Mscordacwks.dll

4.8.3801.0

1,807,920

09-Apr-2019

03:24

x64

None

Not applicable

Mscordbi.dll

4.8.3801.0

1,660,976

09-Apr-2019

03:24

x64

None

Not applicable

Penimc.dll

14.8.3815.0

18,480

15-May-2019

03:08

x64

None

Not applicable

Penimc2_v0400.dll

4.8.3815.0

127,528

15-May-2019

03:08

x64

None

Not applicable

Penimc_v0400.dll

4.8.3815.0

27,184

15-May-2019

03:08

x64

None

Not applicable

Peverify.dll

4.8.3801.0

272,432

09-Apr-2019

03:24

x64

None

Not applicable

Presentationframework-systemdata.dll

4.8.3815.0

24,616

15-May-2019

03:10

x86

None

Not applicable

Presentationframework.dll

4.8.3815.0

6,264,872

15-May-2019

03:10

x86

None

Not applicable

Presentationhost_v0400.dll.mui

4.8.3815.0

84,528

15-May-2019

03:08

Not applicable

None

Not applicable

Presentationhost_v0400.dll

4.8.3815.0

309,512

15-May-2019

03:08

x64

None

Not applicable

Presentationnative_v0400.dll

4.8.3815.0

1,170,984

15-May-2019

03:08

x64

None

Not applicable

Servicemodel.mof

Not applicable

88,383

13-Mar-2019

03:36

Not applicable

None

Not applicable

Servicemodel.mof.uninstall

Not applicable

896

13-Mar-2019

03:36

Not applicable

None

Not applicable

Servicemonikersupport.dll

4.8.3825.0

34,560

01-Jun-2019

02:34

x64

None

Not applicable

Smdiagnostics.dll

4.8.3825.0

73,544

01-Jun-2019

02:36

x86

None

Not applicable

Sos.dll

4.8.3801.0

928,304

09-Apr-2019

03:24

x64

None

Not applicable

System.activities.dll

4.8.3825.0

1,533,344

01-Jun-2019

02:36

x86

None

Not applicable

System.core.dll

4.8.3815.0

1,555,872

15-May-2019

03:10

x86

None

Not applicable

System.identitymodel.services.dll

4.8.3825.0

198,400

01-Jun-2019

02:36

x86

None

Not applicable

System.identitymodel.dll

4.8.3825.0

1,093,960

01-Jun-2019

02:36

x86

None

Not applicable

System.runtime.serialization.dll

4.8.3825.0

1,054,112

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.channels.dll

4.8.3825.0

157,744

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.discovery.dll

4.8.3825.0

308,272

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.internals.dll

4.8.3825.0

253,344

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.washosting.dll

4.8.3825.0

40,192

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.dll

4.8.3825.0

6,386,504

01-Jun-2019

02:36

x86

None

Not applicable

System.web.applicationservices.dll

4.8.3815.0

70,560

15-May-2019

03:10

x86

None

Not applicable

System.web.extensions.dll

4.8.3815.0

1,849,248

15-May-2019

03:10

x86

None

Not applicable

System.windows.controls.ribbon.dll

4.8.3815.0

747,048

15-May-2019

03:10

x86

None

Not applicable

System.workflow.activities.dll

4.8.3825.0

1,050,368

01-Jun-2019

02:36

x86

None

Not applicable

System.workflow.componentmodel.dll

4.8.3825.0

1,556,528

01-Jun-2019

02:36

x86

None

Not applicable

System.workflow.runtime.dll

4.8.3825.0

502,528

01-Jun-2019

02:36

x86

None

Not applicable

System.xaml.dll

4.8.3815.0

638,880

15-May-2019

03:10

x86

None

Not applicable

System.dll

4.8.3801.0

3,558,304

09-Apr-2019

03:27

x86

None

Not applicable

Uiautomationclientsideproviders.dll

4.8.3815.0

361,216

15-May-2019

03:10

x86

None

Not applicable

Uiautomationclient.dll

4.8.3815.0

177,920

15-May-2019

03:10

x86

None

Not applicable

Uiautomationprovider.dll

4.8.3815.0

48,688

15-May-2019

03:10

x86

None

Not applicable

Uiautomationtypes.dll

4.8.3815.0

222,976

15-May-2019

03:10

x86

None

Not applicable

Webengine4.dll

4.8.3815.0

682,248

15-May-2019

03:08

x64

None

Not applicable

Webengine.dll

4.8.3815.0

28,208

15-May-2019

03:08

x64

None

Not applicable

Windowsbase.dll

4.8.3815.0

1,305,648

15-May-2019

03:10

x86

None

Not applicable

Workflowservicehostperformancecounters.dll

4.8.3825.0

102,168

01-Jun-2019

02:34

x64

None

Not applicable

Wpfgfx_v0400.dll

4.8.3815.0

2,056,752

15-May-2019

03:08

x64

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

23-Feb-2019

01:03

Not applicable

None

Not applicable

Globalsansserif.compositefont

Not applicable

26,489

23-Feb-2019

01:03

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

23-Feb-2019

01:03

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

06-May-2019

06:32

Not applicable

None

Not applicable

Presentationcore.dll

4.8.3815.0

3,652,656

15-May-2019

03:08

x64

None

Not applicable

System.web.dll

4.8.3815.0

5,403,176

15-May-2019

03:08

x64

None

Not applicable

Presentationframework-systemdata.dll

4.8.3815.0

24,616

15-May-2019

03:10

x86

None

Not applicable

Presentationframework.dll

4.8.3815.0

6,264,872

15-May-2019

03:10

x86

None

Not applicable

Smdiagnostics.dll

4.8.3825.0

73,544

01-Jun-2019

02:36

x86

None

Not applicable

System.activities.dll

4.8.3825.0

1,533,344

01-Jun-2019

02:36

x86

None

Not applicable

System.core.dll

4.8.3815.0

1,555,872

15-May-2019

03:10

x86

None

Not applicable

System.identitymodel.services.dll

4.8.3825.0

198,400

01-Jun-2019

02:36

x86

None

Not applicable

System.identitymodel.dll

4.8.3825.0

1,093,960

01-Jun-2019

02:36

x86

None

Not applicable

System.runtime.serialization.dll

4.8.3825.0

1,054,112

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.channels.dll

4.8.3825.0

157,744

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.discovery.dll

4.8.3825.0

308,272

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.internals.dll

4.8.3825.0

253,344

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.washosting.dll

4.8.3825.0

40,192

01-Jun-2019

02:36

x86

None

Not applicable

System.servicemodel.dll

4.8.3825.0

6,386,504

01-Jun-2019

02:36

x86

None

Not applicable

System.web.applicationservices.dll

4.8.3815.0

70,560

15-May-2019

03:10

x86

None

Not applicable

System.web.extensions.dll

4.8.3815.0

1,849,248

15-May-2019

03:10

x86

None

Not applicable

System.windows.controls.ribbon.dll

4.8.3815.0

747,048

15-May-2019

03:10

x86

None

Not applicable

System.workflow.activities.dll

4.8.3825.0

1,050,368

01-Jun-2019

02:36

x86

None

Not applicable

System.workflow.componentmodel.dll

4.8.3825.0

1,556,528

01-Jun-2019

02:36

x86

None

Not applicable

System.workflow.runtime.dll

4.8.3825.0

502,528

01-Jun-2019

02:36

x86

None

Not applicable

System.xaml.dll

4.8.3815.0

638,880

15-May-2019

03:10

x86

None

Not applicable

System.dll

4.8.3801.0

3,558,304

09-Apr-2019

03:27

x86

None

Not applicable

Uiautomationclientsideproviders.dll

4.8.3815.0

361,216

15-May-2019

03:10

x86

None

Not applicable

Uiautomationclient.dll

4.8.3815.0

177,920

15-May-2019

03:10

x86

None

Not applicable

Uiautomationprovider.dll

4.8.3815.0

48,688

15-May-2019

03:10

x86

None

Not applicable

Uiautomationtypes.dll

4.8.3815.0

222,976

15-May-2019

03:10

x86

None

Not applicable

Windowsbase.dll

4.8.3815.0

1,305,648

15-May-2019

03:10

x86

None

Not applicable

Mscorlib.dll

4.8.3801.0

5,676,288

09-Apr-2019

03:27

x86

None

Not applicable

Normidna.nlp

Not applicable

59,342

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfc.nlp

Not applicable

47,076

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfd.nlp

Not applicable

40,566

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfkc.nlp

Not applicable

67,808

27-Sep-2018

20:42

Not applicable

None

Not applicable

Normnfkd.nlp

Not applicable

61,718

27-Sep-2018

20:42

Not applicable

None

Not applicable

Aspnet_perf.dll

4.8.3815.0

43,056

15-May-2019

03:10

x86

SPN

X86_NETFX4-ASP

Aspnet_state_perf.h

Not applicable

318

15-May-2019

01:55

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_state_perf.ini

Not applicable

42,996

15-May-2019

03:11

Not applicable

SPN

X86_NETFX4-ASP

Aspnet_wp.exe

4.8.3815.0

46,656

15-May-2019

03:10

x86

SPN

X86_NETFX4-ASP

Clrjit.dll

4.8.3801.0

560,688

09-Apr-2019

03:27

x86

None

Not applicable

Clr.dll

4.8.3801.0

8,042,240

09-Apr-2019

03:27

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

15-Mar-2019

00:44

Not applicable

SPA

X86_NETFX4-GLOBALMONOSP

Globalsansserif.compositefont

Not applicable

26,489

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

06-May-2019

06:58

Not applicable

None

Not applicable

Mscordacwks.dll

4.8.3801.0

1,314,344

09-Apr-2019

03:27

x86

None

Not applicable

Mscordbi.dll

4.8.3801.0

1,195,056

09-Apr-2019

03:27

x86

None

Not applicable

Penimc.dll

14.8.3815.0

18,480

15-May-2019

03:10

x86

None

Not applicable

Penimc2_v0400.dll

4.8.3815.0

106,544

15-May-2019

03:10

x86

None

Not applicable

Penimc_v0400.dll

4.8.3815.0

25,376

15-May-2019

03:10

x86

None

Not applicable

Peverify.dll

4.8.3801.0

189,720

09-Apr-2019

03:27

x86

None

Not applicable

Presentationhost_v0400.dll.mui

4.8.3815.0

84,528

15-May-2019

03:10

Not applicable

None

Not applicable

Presentationhost_v0400.dll

4.8.3815.0

240,688

15-May-2019

03:10

x86

None

Not applicable

Presentationnative_v0400.dll

4.8.3815.0

930,056

15-May-2019

03:10

x86

None

Not applicable

Servicemonikersupport.dll

4.8.3825.0

31,488

01-Jun-2019

02:36

x86

None

Not applicable

Sos.dll

4.8.3801.0

774,192

09-Apr-2019

03:27

x86

None

Not applicable

System.core.dll

4.8.3815.0

1,555,872

15-May-2019

03:10

x86

None

Not applicable

System.web.extensions.dll

4.8.3815.0

1,849,248

15-May-2019

03:10

x86

None

Not applicable

Webengine4.dll

4.8.3815.0

571,440

15-May-2019

03:10

x86

None

Not applicable

Webengine.dll

4.8.3815.0

26,376

15-May-2019

03:10

x86

None

Not applicable

Workflowservicehostperformancecounters.dll

4.8.3825.0

88,856

01-Jun-2019

02:36

x86

None

Not applicable

Wpfgfx_v0400.dll

4.8.3815.0

1,625,352

15-May-2019

03:10

x86

None

Not applicable

Globalmonospace.compositefont

Not applicable

26,040

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globalsansserif.compositefont

Not applicable

26,489

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globalserif.compositefont

Not applicable

29,779

15-Mar-2019

00:44

Not applicable

None

Not applicable

Globaluserinterface.compositefont

Not applicable

264,986

06-May-2019

06:58

Not applicable

None

Not applicable

Presentationcore.dll

4.8.3815.0

3,676,208

15-May-2019

03:10

x86

None

Not applicable

System.web.dll

4.8.3815.0

5,416,224

15-May-2019

03:10

x86

None

Not applicable

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