MS15-118: Description of the security update for the .NET Framework 4.5, 4.5.1, and 4.5.2 on Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, and Windows Server 2008 R2 SP1: November 10, 2015

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Summary

This update resolves vulnerabilities in the Microsoft .NET Framework. The most severe of these vulnerabilities could allow elevation of privilege if an attacker injects a client-side script into a user's browser. To learn more about this vulnerability, see Microsoft Security Bulletin MS15-118.

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

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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 turn on automatic updating, see Get security updates automatically.

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 3098781

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Update deployment information

For deployment information about this update, see Microsoft Knowledge Base article 3104507 .

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 replaces previously released update 2901126.

File information

The 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 systems

GDR service branch

File name	File version	File size	Date	Time
Aspnet_perf.dll	4.0.30319.34280	41,648	13-Oct-2015	09:37
aspnet_wp.exe	4.0.30319.34280	43,176	13-Oct-2015	09:37
System.Web.ApplicationServices.dll	4.0.30319.34280	62,720	13-Oct-2015	08:29
System.Web.Extensions.dll	4.0.30319.34280	1,850,584	13-Oct-2015	08:29
System.Web.dll	4.0.30319.34280	5,456,560	13-Oct-2015	08:29
webengine.dll	4.0.30319.34280	24,744	13-Oct-2015	09:37
webengine4.dll	4.0.30319.34280	509,608	13-Oct-2015	09:37
msvcr120_clr0400.dll	12.0.51720.34280	875,720	13-Oct-2015	09:37

LDR service branch

File name	File version	File size	Date	Time
Aspnet_perf.dll	4.0.30319.36330	41,648	13-Oct-2015	06:55
aspnet_wp.exe	4.0.30319.36330	43,176	13-Oct-2015	06:55
System.Web.ApplicationServices.dll	4.0.30319.36330	62,720	13-Oct-2015	05:55
System.Web.Extensions.dll	4.0.30319.36330	1,850,584	13-Oct-2015	05:55
System.Web.dll	4.0.30319.36330	5,457,576	13-Oct-2015	05:55
webengine.dll	4.0.30319.36330	24,744	13-Oct-2015	06:55
webengine4.dll	4.0.30319.36330	509,608	13-Oct-2015	06:55
msvcr120_clr0400.dll	12.0.52330.36330	875,712	13-Oct-2015	06:55

For all supported x64-based versions of systems

GDR service branch

File name	File version	File size	Date	Time
Aspnet_perf.dll	4.0.30319.34280	45,232	13-Oct-2015	09:54
Aspnet_perf.dll	4.0.30319.34280	41,648	13-Oct-2015	09:37
aspnet_wp.exe	4.0.30319.34280	47,784	13-Oct-2015	09:54
aspnet_wp.exe	4.0.30319.34280	43,176	13-Oct-2015	09:37
System.Web.ApplicationServices.dll	4.0.30319.34280	62,720	13-Oct-2015	08:29
System.Web.Extensions.dll	4.0.30319.34280	1,850,584	13-Oct-2015	08:29
System.Web.dll	4.0.30319.34280	5,450,416	13-Oct-2015	09:54
System.Web.dll	4.0.30319.34280	5,456,560	13-Oct-2015	08:29
webengine.dll	4.0.30319.34280	26,792	13-Oct-2015	09:54
webengine.dll	4.0.30319.34280	24,744	13-Oct-2015	09:37
webengine4.dll	4.0.30319.34280	621,224	13-Oct-2015	09:54
webengine4.dll	4.0.30319.34280	509,608	13-Oct-2015	09:37
msvcr120_clr0400.dll	12.0.51720.34280	869,568	13-Oct-2015	09:54
msvcr120_clr0400.dll	12.0.51720.34280	875,720	13-Oct-2015	09:37

LDR service branch

File name	File version	File size	Date	Time
Aspnet_perf.dll	4.0.30319.36330	45,232	13-Oct-2015	07:09
Aspnet_perf.dll	4.0.30319.36330	41,648	13-Oct-2015	06:55
aspnet_wp.exe	4.0.30319.36330	47,784	13-Oct-2015	07:09
aspnet_wp.exe	4.0.30319.36330	43,176	13-Oct-2015	06:55
System.Web.ApplicationServices.dll	4.0.30319.36330	62,720	13-Oct-2015	05:55
System.Web.Extensions.dll	4.0.30319.36330	1,850,584	13-Oct-2015	05:55
System.Web.dll	4.0.30319.36330	5,450,928	13-Oct-2015	07:09
System.Web.dll	4.0.30319.36330	5,457,576	13-Oct-2015	05:55
webengine.dll	4.0.30319.36330	26,792	13-Oct-2015	07:09
webengine.dll	4.0.30319.36330	24,744	13-Oct-2015	06:55
webengine4.dll	4.0.30319.36330	621,224	13-Oct-2015	07:09
webengine4.dll	4.0.30319.36330	509,608	13-Oct-2015	06:55
msvcr120_clr0400.dll	12.0.52330.36330	869,568	13-Oct-2015	07:09
msvcr120_clr0400.dll	12.0.52330.36330	875,712	13-Oct-2015	06:55

How to obtain help and support for this security update

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Applies to

This 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
Microsoft .NET Framework 4.5.1 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
Microsoft .NET Framework 4.5 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