Security Only Update for .NET Framework 2.0, 3.0 for Windows Server 2008 SP2 (KB4578979)

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

An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory. An attacker who successfully exploited the vulnerability could disclose contents of an affected system's memory. To exploit the vulnerability, an authenticated attacker would need to run a specially crafted application. The update addresses the vulnerability by correcting how the .NET Framework handles objects in memory.

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.

  • 4580470 Description of the Security Only Update for .NET Framework 2.0, 3.0, 4.5.2, 4.6 for Windows Server 2008 SP2 (KB4580470)

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:

20201013 Security update deployment information: October 13, 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-KB4578979-x64.msu

3AB1A6134AB7413A9221C49BFDDB5D0D717DA26A

B785C286021C381C048D71EBCA4CE4702E05A53DC919B71C34ADA30323EC9517

Windows6.0-KB4578979-x86.msu

8892B4ECF0B869992C88EB37533CF126FD4ECD1B

7BCC2FC4E4385F1C3C8D18972F41CD02A28B274A8578ED9C0C398FBE96D4286E

For all supported x64-based versions

File name

File version

File size

Date

Time

Platform

System.security.dll

2.0.50727.8952

274,432

29-Aug-2020

13:12

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

32,768

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

16,896

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

32,768

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

16,384

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

16,384

16-Nov-2017

03:48

x86

System.security.dll

2.0.50727.8952

274,432

29-Aug-2020

13:11

x86

For all supported x86-based versions

File name

File version

File size

Date

Time

Platform

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

32,768

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:47

x86

System.security.resources.dll

2.0.50727.4016

28,672

16-Nov-2017

03:48

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:19

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

16,896

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

18-Oct-2018

23:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

26-Jul-2020

07:20

x86

System.security.resources.dll

2.0.50727.4016

28,672

26-Jul-2020

07:20

x86

System.security.resources.dll

2.0.50727.4016

32,768

26-Jul-2020

07:21

x86

System.security.resources.dll

2.0.50727.4016

28,672

26-Jul-2020

07:21

x86

System.security.resources.dll

2.0.50727.4016

28,672

26-Jul-2020

07:22

x86

System.security.resources.dll

2.0.50727.4016

16,384

26-Jul-2020

07:22

x86

System.security.resources.dll

2.0.50727.4016

16,384

16-Nov-2017

03:48

x86

System.security.dll

2.0.50727.8952

274,432

29-Aug-2020

13:11

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?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×