Security update for the Scripting Engine Memory Corruption Vulnerability in Windows Server 2008: May 9, 2017

Summary

A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory when the engine is rendered in Internet Explorer. In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit this vulnerability through Internet Explorer, and then convince a user to view the website. An attacker could also embed an ActiveX control that is marked “safe for initialization” in an application or Microsoft Office document that hosts the Internet Explorer rendering engine.The attacker could also take advantage of compromised websites and websites that accept or host user-provided content or advertisements. These websites could contain specially crafted content that could be used to exploit this vulnerability.

To learn more about the vulnerability, go to CVE-2017-0158.

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-KB4020535-ia64.msu	AFC67EB5B999CEA6DB864E96AAF500B37052DC6D	D261C0ECD7F1BF65E80CAE652C3B90045A2EEBEF84940B05FCFD44D7B536B855
Windows6.0-KB4020535-x64.msu	496634612B501E502835FEECF16C825566AD1A50	5A1936AA781A1E6653D2E8B444B7AE79E9BCD48E828318B8139AF7EEBB308EA4
Windows6.0-KB4020535-x86.msu	C709FF70E54A4EF5D1CA248D54B676DD9CACA05F	3DBD6EC4E507098D7BFB43AC8FE90BD2565B9597CFE8DD4130ABF132B7E9FFE3

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 ia64-based versions

File name	File version	File size	Date	Time	Platform
Cdosys.dll	6.6.6002.24092	2,118,144	21-Apr-2017	15:17	IA-64
Msado60.tlb	6.0.6002.24092	73,728	21-Apr-2017	14:47	Not applicable
Msado15.dll	6.0.6002.19774	1,798,144	21-Apr-2017	15:46	IA-64
Msado15.dll	6.0.6002.24092	1,904,640	21-Apr-2017	15:18	IA-64
Cdosys.dll	6.6.6002.24092	805,888	21-Apr-2017	15:23	x86
Msado60.tlb	6.0.6002.24092	73,728	21-Apr-2017	14:42	Not applicable
Msado15.dll	6.0.6002.19774	708,608	21-Apr-2017	15:55	x86
Msado15.dll	6.0.6002.24092	737,280	21-Apr-2017	15:24	x86

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For all supported x64-based versions

File name	File version	File size	Date	Time	Platform
Cdosys.dll	6.6.6002.24092	1,151,488	21-Apr-2017	15:43	x64
Msado60.tlb	6.0.6002.24092	73,728	21-Apr-2017	15:07	Not applicable
Msado15.dll	6.0.6002.19774	974,848	21-Apr-2017	16:20	x64
Msado15.dll	6.0.6002.24092	1,036,288	21-Apr-2017	15:44	x64
Cdosys.dll	6.6.6002.24092	805,888	21-Apr-2017	15:23	x86
Msado60.tlb	6.0.6002.24092	73,728	21-Apr-2017	14:42	Not applicable
Msado15.dll	6.0.6002.19774	708,608	21-Apr-2017	15:55	x86
Msado15.dll	6.0.6002.24092	737,280	21-Apr-2017	15:24	x86

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For all supported x86-based versions

File name	File version	File size	Date	Time	Platform
Cdosys.dll	6.6.6002.24092	805,888	21-Apr-2017	15:23	x86
Msado60.tlb	6.0.6002.24092	73,728	21-Apr-2017	14:42	Not applicable
Msado15.dll	6.0.6002.19774	708,608	21-Apr-2017	15:55	x86
Msado15.dll	6.0.6002.24092	737,280	21-Apr-2017	15:24	x86