Summary

An information disclosure vulnerability exists when the Windows kernel handles objects in memory incorrectly. An attacker who successfully exploits this vulnerability could obtain information to further compromise the user’s system.

To learn more about the vulnerability, go to CVE-2017-0220.

More Information

Important

  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

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 turn on automatic updating, see Get security updates automatically.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

Deployment information

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

Security update deployment information: May 9, 2017

More Information

Help for installing updates: Windows Update FAQ

Security solutions for IT professionals: TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

File Information

File name

SHA1 hash

SHA256 hash

Windows6.0-KB4018821-ia64.msu

B8ECB73E699059F0F5C79E745E86CD34AA168A5D

D2B5077D87A39B40833961529E3ED45FA68C0E063CDFA4B3502FFF15178F041D

Windows6.0-KB4018821-x64.msu

7FC26196E33CADEE355BE64D64386F180C786DFE

78A34D40A2B3C7DE99D4860DB1EA47FC718377A90C2F069F63B482F92B406DD5

Windows6.0-KB4018821-x86.msu

FD7962C2823A878BC2F8EBCE54FED2320AA47BB6

C0955D29940AED39E34B561596886FB5AFDCA065238F94F413F208C2224C835B


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 name

File version

File size

Date

Time

Platform

Tdx.sys

6.0.6002.19762

229,376

04-Apr-2017

14:41

IA-64

Tdx.sys

6.0.6002.24087

229,376

05-Apr-2017

14:39

IA-64

Afd.sys

6.0.6002.19762

985,088

04-Apr-2017

14:42

IA-64

Afd.sys

6.0.6002.24087

985,600

05-Apr-2017

14:40

IA-64

File name

File version

File size

Date

Time

Platform

Tdx.sys

6.0.6002.19762

94,720

04-Apr-2017

14:58

x64

Tdx.sys

6.0.6002.24087

94,720

05-Apr-2017

14:59

x64

Afd.sys

6.0.6002.19762

404,992

04-Apr-2017

14:59

x64

Afd.sys

6.0.6002.24087

404,992

05-Apr-2017

15:00

x64

File name

File version

File size

Date

Time

Platform

Tdx.sys

6.0.6002.19762

72,192

04-Apr-2017

14:35

x86

Tdx.sys

6.0.6002.24087

72,192

05-Apr-2017

14:35

x86

Afd.sys

6.0.6002.19762

273,408

04-Apr-2017

14:35

x86

Afd.sys

6.0.6002.24087

273,920

05-Apr-2017

14:36

x86

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