MS16-091: Description of the security update for the .NET Framework 4.5.2 in Windows Vista Service Pack 2, Windows Server 2008 Service Pack 2, Windows 7 Service Pack 1, and Windows Server 2008 R2 Service Pack 1: July 12, 2016

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Summary

This update resolves a vulnerability in the Microsoft .NET Framework. The vulnerability could cause information disclosure if an attacker uploads a specially crafted XML file to a web-based application. To learn more about this vulnerability, see Microsoft Security Bulletin MS16-091.

To install this update, you must have Windows Installer 3.1 or a later version installed on the computer.

How to obtain and install this 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 get security updates automatically, see the “Turn on automatic updating in the Control Panel” section of this Safety & Security Center article.

Method 2: Microsoft Download Center

You can obtain the stand-alone update package through the Microsoft Download Center. To install this update, follow the installation instructions on the download page.

Download security update 3163251

Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3170048.

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.

Update replacement information

This update does not replace any previously released update.

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File information

File hashPackage name	Package hash SHA1	Package hash SHA2
NDP45-KB3163251-x64.exe	4D00CB96BD696A58F9103ABC1B1A94225B384C5E	F8E74D6639288DAD5DE0EE1285E1D900EB1D6F047AB38414F44662CA08B4DE5D
NDP45-KB3163251-x86.exe	C8E8C4F50C3DC3BEAA1E8AA3374643FA2D2585C0	F9F4CFAFC8B61A189F9D13A5B66E0F0C90EA2346464384F6DC2C6432C0ADCC7A
File attributesThe English (United States) version of this update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

For all supported x86-based versions of systemsGDR service branchFile name	File version	File size	Date	Time
System.Data.dll	4.0.30319.34297	3,208,368	20-May-2016	10:13
msvcp120_clr0400.dll	12.0.51737.34297	536,768	20-May-2016	17:38
msvcr120_clr0400.dll	12.0.51737.34297	875,712	20-May-2016	17:38
LDR service branchFile name	File version	File size	Date	Time
—	—	—	—	—
System.Data.dll	4.0.30319.36360	3,209,392	20-May-2016	10:25
msvcp120_clr0400.dll	12.0.52360.36360	536,768	20-May-2016	17:42
msvcr120_clr0400.dll	12.0.52360.36360	875,712	20-May-2016	17:42
For all supported x64-based versions of systemsGDR service branchFile name	File version	File size	Date	Time
—	—	—	—	—
System.Data.dll	4.0.30319.34297	3,236,016	20-May-2016	17:51
System.Data.dll	4.0.30319.34297	3,208,368	20-May-2016	10:13
msvcp120_clr0400.dll	12.0.51737.34297	678,592	20-May-2016	17:51
msvcp120_clr0400.dll	12.0.51737.34297	536,768	20-May-2016	17:38
msvcr120_clr0400.dll	12.0.51737.34297	869,568	20-May-2016	17:51
msvcr120_clr0400.dll	12.0.51737.34297	875,712	20-May-2016	17:38
LDR service branchFile name	File version	File size	Date	Time
—	—	—	—	—
System.Data.dll	4.0.30319.36360	3,238,064	20-May-2016	17:57
System.Data.dll	4.0.30319.36360	3,209,392	20-May-2016	10:25
msvcp120_clr0400.dll	12.0.52360.36360	678,592	20-May-2016	17:57
msvcp120_clr0400.dll	12.0.52360.36360	536,768	20-May-2016	17:42
msvcr120_clr0400.dll	12.0.52360.36360	869,568	20-May-2016	17:57
msvcr120_clr0400.dll	12.0.52360.36360	875,712	20-May-2016	17:42

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How to obtain help and support for this security update

Help for installing updates: Support for Microsoft Update

Security solutions for IT professionals: TechNet Security Troubleshooting and Support

Help for protecting your Windows-based computer from viruses and malware: Virus Solution and Security Center

Local support according to your country: International Support

Applies toThis article applies to the following:

• Microsoft .NET Framework 4.5.2 when used with:
  • Windows Server 2008 R2 Service Pack 1
  • Windows 7 Service Pack 1
  • Windows Server 2008 Service Pack 2
  • Windows Vista Service Pack 2