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Applies to:

Microsoft .NET Framework 2.0 Microsoft .NET Framework 3.0

IMPORTANT Verify thatyou have installed the required updates listed in the How to get this update section before installing this update.

IMPORTANT WSUS scan cab files will continue to be available for Windows Server 2008 SP2. If you have a subset of devices running this operating system without ESU, they might show as non-compliant in your patch management and compliance toolsets.

IMPORTANT Customers who have purchased the Extended Security Update (ESU) for on-premises versions of this OS must follow the procedures in KB4522133 to continue receiving security updates after extended support ends on January 14, 2020. For more information on ESU and which editions are supported, see KB4497181.

Summary

A remote code execution vulnerability exists in .NET Framework when the software fails to check the source markup of XML file input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the process responsible for deserialization of the XML content. To exploit this vulnerability, an attacker could upload a specially crafted document to a server utilizing an affected product to process content. The security update addresses the vulnerability by correcting how .NET Framework validates the source markup of XML content.

This security update affects how .NET Framework's System.Data.DataTable and System.Data.DataSet types read XML-serialized data. Most .NET Framework applications will not experience any behavioral change after the update is installed. For more information on how the update affects .NET Framework, including examples of scenarios which may be affected, please see the DataTable and DataSet security guidance document at https://go.microsoft.com/fwlink/?linkid=2132227.

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

Known Issues

Symptoms:

After you apply this update, some applications experience a TypeInitializationException exception when they try to deserialize System.Data.DataSet or System.Data.DataTable instances from the XML within a SQL CLR stored procedure. The stack trace for this exception appears as follows:

System.TypeInitializationException: The type initializer for 'Scope' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
     at System.Data.TypeLimiter.Scope.IsTypeUnconditionallyAllowed(Type type)
     at System.Data.TypeLimiter.Scope.IsAllowedType(Type type)
     at System.Data.TypeLimiter.EnsureTypeIsAllowed(Type type, TypeLimiter capturedLimiter)

Resolution:

Install the latest version of this update that was released on October 13th, 2020.

Additional information about this update

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

  • 4566469 Description of the Security Only Update for .NET Framework 2.0, 3.0, 4.5.2, 4.6 for Windows Server 2008 SP2 (KB4566469)

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 2.0, 3.0 installed.

You must install the updates listed below and restart your device before installing the latest Rollup. Installing these updates improves the reliability of the update process and mitigates potential issues while installing the Rollup and applying Microsoft security fixes.

  1. The April 9, 2019 servicing stack update (SSU) (KB4493730). To get the standalone package for this SSU, search for it in theMicrosoft Update Catalog.This update is required to install updates that are only SHA-2 signed.

  2. The latest SHA-2 update (KB4474419) released October 8, 2019. If you are using Windows Update, the latest SHA-2 update will be offered to you automatically. This update is required to install updates that are only SHA-2 signed. For more information on SHA-2 updates, see 2019 SHA-2 Code Signing Support requirement for Windows and WSUS.

  3. The Extended Security Updates (ESU) Licensing Preparation Package (KB4538484) released February 11, 2020. The ESU licensing preparation package will be offered to you from WSUS.To get the standalone package for ESU licensing preparation package, search for it in theMicrosoft Update Catalog.

Install this update

Release Channel

Available

Next Step

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to theMicrosoft Update Catalogwebsite.

Windows Server Update Services (WSUS)

Yes

This update will automatically syncwith WSUS if you configure Products and Classifications as follows:

Product:Windows Server 2008 Service Pack 2

Classification: Security Updates

Prerequisites

To apply this update, you must have .NET Framework 2.0, 3.0 installed.

Restart requirement

You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.

Update deployment information

For deployment details for this security update, go to the following article in the Microsoft Knowledge Base:

20200714 Security update deployment information: July 14, 2020

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 Vista and Windows Server 2008 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

Windows6.0-KB4565578-v2-x64.msu

6A5AD20275A1A475227A0A4E18C01E6E82D9AADA

0BDE490972E11B329B9B2338BD60A253655AF37A4451D13589A65BAC53389A02

Windows6.0-KB4565578-v2-x86.msu

73FEA60C54ED9021FA945365C47939BA0043619C

52560DA5ED4E464E31B24FD35677B0500C84EBA361B8A3B5A61CBDCC66A09241

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

System.configuration.dll

2.0.50727.8949

430,080

19-Jun-2020

00:41

x86

System.data.dll

2.0.50727.8949

3,158,016

19-Jun-2020

00:41

x64

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Nov-2017

04:32

x86

System.configuration.resources.dll

2.0.50727.4016

61,440

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Nov-2017

04:32

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

57,344

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

26-Oct-2018

02:23

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

21-Mar-2018

16:26

x86

System.configuration.dll

2.0.50727.8949

430,080

19-Jun-2020

00:40

x86

System.data.resources.dll

2.0.50727.5718

376,832

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Nov-2017

04:32

x86

System.data.resources.dll

2.0.50727.5718

421,888

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

368,640

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

372,736

21-Nov-2017

04:32

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

339,968

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

352,256

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

352,256

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

409,600

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

344,064

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

344,064

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

327,680

26-Oct-2018

02:23

x86

System.data.resources.dll

2.0.50727.5718

331,776

21-Mar-2018

16:26

x86

System.data.dll

2.0.50727.8949

2,983,424

19-Jun-2020

00:40

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Nov-2017

04:32

x86

System.configuration.resources.dll

2.0.50727.4016

61,440

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

53,248

21-Nov-2017

04:32

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

57,344

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

49,152

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

21-Mar-2018

16:26

x86

System.configuration.resources.dll

2.0.50727.4016

45,056

21-Mar-2018

16:26

x86

System.configuration.dll

2.0.50727.8949

430,080

19-Jun-2020

00:40

x86

System.data.resources.dll

2.0.50727.5718

376,832

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Nov-2017

04:32

x86

System.data.resources.dll

2.0.50727.5718

421,888

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

368,640

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

372,736

21-Nov-2017

04:32

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

339,968

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

352,256

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

356,352

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

348,160

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

352,256

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

409,600

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

344,064

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

327,680

21-Mar-2018

16:26

x86

System.data.resources.dll

2.0.50727.5718

331,776

21-Mar-2018

16:26

x86

System.data.dll

2.0.50727.8949

2,983,424

19-Jun-2020

00:40

x86

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