July 9, 2019—KB4507452 (Monthly Rollup)

View products that this article applies to.

Release Date:

Jul 09, 2019

Version:

Monthly Rollup

Customers who have applied KB4489887 or later Monthly Rollup Packages to Microsoft Server 2008 SP2 may notice a change to the operating system version string. The “build number” component of the version string increases by 1, and the revision number decreases by approximately 4000 numbers. To find out more about this change please refer to the following article.

July 19, 2019 - IMPORTANT: Beginning with the July 2019 updates, Active Directory domain controllers will intentionally block unconstrained delegation across forest, external, and quarantined trusts. Authentication requests for services that use unconstrained delegation over the listed trust types will fail when you request new tickets. Administrators should reconfigure the affected services to use resource-based constrained delegation. For more information, see KB4490425.

↑ Back to the top

Improvements and fixes

This security update includes improvements and fixes that were a part of update KB4503271 (released June 20, 2019) and addresses the following issues:

Provides protections against a variant (CVE-2019-1125) of the Spectre Variant 1 speculative execution side channel vulnerability.
Security updates to Windows Server, Microsoft Graphics Component, Windows Shell, Windows Input and Composition, and Windows Kernel.

For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.

↑ Back to the top

Known issues in this update

Symptom	Workaround
Devices that start up using Preboot Execution Environment (PXE) images from Windows Deployment Services (WDS) or System Center Configuration Manager (SCCM) may fail to start with the error "Status: 0xc0000001, Info: A required device isn't connected or can't be accessed" after installing this update on a WDS server.	This issue is resolved in KB4512499.

↑ Back to the top

How to get this update

Before installing this update

Microsoft strongly recommends you install the latest servicing stack update (SSU) for your operating system before installing the latest Rollup. SSUs improve the reliability of the update process to mitigate potential issues while installing the Rollup and applying Microsoft security fixes.

If you are using Windows Update, the latest SSU (KB4493730) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.

Install this update

Release Channel	Available	Next Step
Windows Update and Microsoft Update	Yes	None. This update will be downloaded and installed automatically from Windows Update.
Microsoft Update Catalog	Yes	To get the standalone package for this update, go to the Microsoft Update Catalog website.
Windows Server Update Services (WSUS)	Yes	This update will automatically synchronize with WSUS if you configure Products and Classifications as follows: Product: Windows Server 2008 Service Pack 2 Classification: Security Updates