Description of the security update for the elevation of privilege vulnerability in Microsoft Visual Studio 2015 Update 3: January 12, 2021

Applies to: All Visual Studio 2015 Update 3 editions except Build Tools

Summary

An elevation of privilege vulnerability exists if the Diagnostics Hub Standard Collector incorrectly handles data operations.To learn more about this vulnerability, see CVE-2021-1651 and CVE-2021-1680.

How to obtain and install the update

Visual Studio 2015 Update 3

Method 1: Microsoft Download

The following file is available for download:Download the hotfix package now.

Method 2: Microsoft Update Catalog

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Remote Tools for Visual Studio 2015 Update 3

To download the updated Remote Tools for Visual Studio 2015 Update 3, go to the following Microsoft webpage:Remote Tools for Visual Studio 2015 Update 3

More information

Prerequisites

To apply this security update, you must have both Visual Studio 2015 Update 3 and the subsequent Cumulative Servicing Release KB 3165756 installed. Typically, KB 3165756 is installed automatically when you install Visual Studio 2015 Update 3. However, in some cases, you have to install the two packages separately.

Restart requirement

We recommend that you close Visual Studio 2015 before you install this security update. Otherwise, you may have to restart the computer after you apply this security update if a file that is being updated is open or in use by Visual Studio.

Security update replacement information

This security update supersedes KB4576950.

File hash information

File name	SHA1 hash	SHA256 hash
vs14-kb4584787.exe	6DF9596F687F7867BC8E3D04705E51B44865CDED	2368B737F37C1EE719728708B95CB9745CC36A05EC9AE912105F1EA3043A8C01

Installation verification

To verify that this security update is applied correctly, follow these steps:

1. Open the Visual Studio 2015 program folder.
2. Locate the DiagnosticsHub.StandardCollector.Runtime.dll file.
3. Verify that the file version is equal to or greater than 14.0.27547**.0**.

Information about protection, security, and support

• Protect yourself online: Windows Security support

• Learn how we guard against cyber threats: Microsoft Security

• Obtain localized support per your country: International Support

• Get more information about the Visual Studio support policy: Visual Studio Product Lifecycle and Servicing.