Applies to:

Microsoft .NET Framework 4.8

Summary

An elevation of privilege vulnerability exists when the .NET Framework common language runtime (CLR) allows file creation in arbitrary locations. An attacker who successfully exploited this vulnerability could write files to folders that require higher privileges than what the attacker already has.

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.

  • 4514598 Description of the Security Only Update 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 (KB4514598)

How to obtain and install the update

Method 1: Microsoft Update Catalog

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

Method 2: 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 4514598 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:

20190910 Security update deployment information: September 10, 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.


File information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.

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-KB4514330-x64.msu

1C1278D20D788623B8E5E4BFDE87568A76A9F030

23ECB01374CE0FDCE42D0E7EE8BC9F4A13F50052EC1ADCFF1906C881E93580DB

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.8.4010.0

5,437,720

25-Jul-2019

23:31

x64

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4010.0

1,365,488

25-Jul-2019

23:31

x64

Clr.dll

4.8.4010.0

11,269,912

25-Jul-2019

23:31

x64

Compatjit.dll

4.8.4010.0

1,280,792

25-Jul-2019

23:31

x64

Mscordacwks.dll

4.8.4010.0

1,808,664

25-Jul-2019

23:31

x64

Mscordbi.dll

4.8.4010.0

1,661,928

25-Jul-2019

23:31

x64

Peverify.dll

4.8.4010.0

273,384

25-Jul-2019

23:31

x64

Sos.dll

4.8.4010.0

929,264

25-Jul-2019

23:31

x64

Mscorlib.dll

4.8.4010.0

5,676,824

25-Jul-2019

23:32

x86

Normidna.nlp

Not applicable

59,342

26-Jun-2019

22:11

Not applicable

Normnfc.nlp

Not applicable

47,076

26-Jun-2019

22:11

Not applicable

Normnfd.nlp

Not applicable

40,566

26-Jun-2019

22:11

Not applicable

Normnfkc.nlp

Not applicable

67,808

26-Jun-2019

22:11

Not applicable

Normnfkd.nlp

Not applicable

61,718

26-Jun-2019

22:11

Not applicable

Clrjit.dll

4.8.4010.0

561,432

25-Jul-2019

23:32

x86

Clr.dll

4.8.4010.0

8,043,800

25-Jul-2019

23:32

x86

Mscordacwks.dll

4.8.4010.0

1,315,096

25-Jul-2019

23:32

x86

Mscordbi.dll

4.8.4010.0

1,195,800

25-Jul-2019

23:32

x86

Peverify.dll

4.8.4010.0

190,448

25-Jul-2019

23:32

x86

Sos.dll

4.8.4010.0

774,936

25-Jul-2019

23:32

x86

Information about protection and security

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