Description of the security update for SharePoint Enterprise Server 2016: January 12, 2021

Summary

This security update resolves vulnerabilities in Microsoft Office that could allow remote code execution if a user opens a specially crafted Office file. To learn more about these vulnerabilities, see the following security advisories:

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1641

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1707

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1712

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1715

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1716

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1717

• Microsoft Common Vulnerabilities and Exposures CVE-2021-1719
  Note To apply this security update, you must have the release version of Microsoft SharePoint Enterprise Server 2016 installed on the computer.This public update delivers Feature Pack 2 for SharePoint Server 2016. Feature Pack 2 contains the following feature:

• SharePoint Framework (SPFx)
  This public update also delivers all the features that were included in Feature Pack 1 for SharePoint Server 2016, including:

• Administrative Actions Logging

• MinRole enhancements

• SharePoint Custom Tiles

• Hybrid Taxonomy

• OneDrive API for SharePoint on-premises

• OneDrive for Business modern user experience (available to Software Assurance customers)
  The OneDrive for Business modern user experience requires an active Software Assurance contract at the time that the experience is enabled, either by installation of the public update or by manual enablement. If you don’t have an active Software Assurance contract at the time of enablement, you must turn off the OneDrive for Business modern user experience.For more information, see the following Microsoft Docs articles:

• New features included in the November 2016 Public Update for SharePoint Server 2016 (Feature Pack 1)

• New features included in the September 2017 Public Update for SharePoint Server 2016 (Feature Pack 2)

Improvements and fixes

This security update enables the Search administrator to use the case-insensitive crawl behavior instead of case-sensitive crawling by setting the CaseSensitiveUrls property to0. To do this, use the following PowerShell script:`

$ssa = Get-SPEnterpriseSearchServiceApplication
$ssa.SetProperty(“CaseSensitiveUrls”, 0)
$ssa.Update()

`This update also contains fixes for the following nonsecurity issues in Project Server 2016:

• If you delete many thousands of timesheets, the process might be slow.
• Going to the Approvals page may take much longer than expected.

How to get and install the update

Method 1: Microsoft Update

This update is available from Microsoft 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 Windows Update: FAQ.

Method 2: Microsoft Update Catalog

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

Method 3: Microsoft Download Center

You can get the standalone update package through the Microsoft Download Center. Follow the installation instructions on the download page to install the update.

• Download security update 4493163 for the 64-bit version of SharePoint Enterprise Server 2016

More information

Security update deployment information

For deployment information about this update, see security update deployment information: January 12, 2021.

Security update replacement information

This security update replaces previously released security update 4486753.

File hash information

File name	SHA1 hash	SHA256 hash
sts2016-kb4493163-fullfile-x64-glb.exe	4807D885EB29946889DFEC19E89E89CF866AE5C4	DA066E9BBA80180187668D03BD1A95FBE5C2CC998BFFB0FD13CD03CDA2DCDE36

File information

Download the list of files that are included in security update 4493163.

Information about protection and security

Protect yourself online: Windows Security supportLearn how we guard against cyber threats: Microsoft Security