Applies to:

Microsoft .NET Framework 4.5.2

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-KB4514342-x64.msu

5725B95AB69136DCEE532164E9905097C4B4A938

5FEF1D714B78D2AC095454F872ABE3ECCA12E208F77047C878C5995192B3EF06

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.0.30319.36575

5,222,680

27-Jul-2019

13:06

x64

Normidna.nlp

Not applicable

59,342

04-May-2018

19:43

Not applicable

Normnfc.nlp

Not applicable

47,076

04-May-2018

19:43

Not applicable

Normnfd.nlp

Not applicable

40,566

04-May-2018

19:43

Not applicable

Normnfkc.nlp

Not applicable

67,808

04-May-2018

19:43

Not applicable

Normnfkd.nlp

Not applicable

61,718

04-May-2018

19:43

Not applicable

Clrjit.dll

4.0.30319.36575

1,235,224

27-Jul-2019

13:06

x64

Clr.dll

4.0.30319.36575

10,071,320

27-Jul-2019

13:06

x64

Mscordacwks.dll

4.0.30319.36575

1,731,856

27-Jul-2019

13:06

x64

Mscordbi.dll

4.0.30319.36575

1,534,448

27-Jul-2019

13:06

x64

Msvcp120_clr0400.dll

12.0.52575.36575

679,400

27-Jul-2019

13:06

x64

Msvcr120_clr0400.dll

12.0.52575.36575

870,168

27-Jul-2019

13:06

x64

Peverify.dll

4.0.30319.36575

226,784

27-Jul-2019

13:06

x64

Sos.dll

4.0.30319.36575

823,784

27-Jul-2019

13:06

x64

Mscorlib.dll

4.0.30319.36575

5,268,760

27-Jul-2019

13:06

x86

Normidna.nlp

Not applicable

59,342

31-Mar-2019

04:15

Not applicable

Normnfc.nlp

Not applicable

47,076

31-Mar-2019

04:15

Not applicable

Normnfd.nlp

Not applicable

40,566

31-Mar-2019

04:15

Not applicable

Normnfkc.nlp

Not applicable

67,808

31-Mar-2019

04:15

Not applicable

Normnfkd.nlp

Not applicable

61,718

31-Mar-2019

04:15

Not applicable

Clrjit.dll

4.0.30319.36575

509,928

27-Jul-2019

13:06

x86

Clr.dll

4.0.30319.36575

6,941,464

27-Jul-2019

13:06

x86

Mscordacwks.dll

4.0.30319.36575

1,284,888

27-Jul-2019

13:06

x86

Mscordbi.dll

4.0.30319.36575

1,108,240

27-Jul-2019

13:06

x86

Msvcp120_clr0400.dll

12.0.52575.36575

537,576

27-Jul-2019

13:06

x86

Msvcr120_clr0400.dll

12.0.52575.36575

876,312

27-Jul-2019

13:06

x86

Peverify.dll

4.0.30319.36575

164,632

27-Jul-2019

13:06

x86

Sos.dll

4.0.30319.36575

763,368

27-Jul-2019

13:06

x86

Information about protection and security

Need more help?

Expand your skills

EXPLORE TRAINING >

Get new features first

JOIN MICROSOFT INSIDERS >

Was this information helpful?

What affected your experience?

Thank you for your feedback!

×