Security update for the Windows win32k Information Disclosure Vulnerability in Windows Server 2008: May 9, 2017

Summary

An information disclosure vulnerability exists when the win32k component incorrectly provides kernel information. An attacker who successfully exploits the vulnerability could obtain information to further compromise the user’s system.

To learn more about the vulnerability, go to the Security Update Guide.

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

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How to obtain help and support for this security update

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

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File hash information

File name	SHA1 hash	SHA256 hash
Windows6.0-KB4019204-x64.msu	6F7B323D9865D8B88CAEB3FC83A8BB74222AFC3F	E44B48BD9F07FA10CC183931D35E89828681A49DF52049AE0D28002337FB87FA
Windows6.0-KB4019204-ia64.msu	D16A080F7214A81D09FE1781685E84B0E55BBC71	30D201FE117DFE3924B9E5E4ECBCE2F0E3921E76DD69FFC889DB8F7B78076FC9
Windows6.0-KB4019204-x86.msu	8301605396E05D4B8E2EE38FCB3CD801AD019CCE	61ED3DBC6DCA600139F6CA77D784B4C8EED77BC6762A1CE209A92642DBE7D23B

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 2008 file information

Note: The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

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For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Win32k.sys	6.0.6002.19778	2,806,272	28-Apr-2017	01:59	x64
Win32k.sys	6.0.6002.24095	2,808,320	28-Apr-2017	02:45	x64

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For all supported ia64-based versions

File name	File version	File size	Date	Time	Platform
Win32k.sys	6.0.6002.19778	6,693,888	28-Apr-2017	01:45	IA-64
Win32k.sys	6.0.6002.24095	6,703,616	28-Apr-2017	02:21	IA-64

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For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Win32k.sys	6.0.6002.19778	2,074,112	28-Apr-2017	03:15	x86
Win32k.sys	6.0.6002.24095	2,082,304	28-Apr-2017	03:51	x86