June 8, 2021 Public preview security update (KB5003645)
Release Date:
6/8/2021
Version:
OS Build 20348.51
Improvements and fixes
This public preview security update includes quality improvements. Key changes include:
-
Addresses an issue in which a principal in a trusted MIT realm fails to obtain a Kerberos service ticket from Active Directory domain controllers (DC). This occurs on devices that installed Windows Updates that contain CVE-2020-17049 protections and configured PerfromTicketSignature to 1 or higher. These updates were released between November 10, 2020 and December 8, 2020. Ticket acquisition also fails with the error, “KRB_GENERIC_ERROR”, if callers submit a PAC-less Ticket Granting Ticket (TGT) as an evidence ticket without providing the USER_NO_AUTH_DATA_REQUIRED flag.
-
Security updates to the Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Input and Composition, Windows Management, the Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, the Windows Kernel, Windows Remote Desktop, and Windows Storage and Filesystems.
For more information about the resolved security vulnerabilities, please refer to the Security Update Guide.
Known issues in this update
Microsoft is not currently aware of any issues with this update.
How to get this update
The June 8, 2021 security update public preview (KB5003645) for Azure Stack HCI, version 21H2 is delivered from the release channels below. To install it on your Azure Stack HCI cluster, see Update Azure Stack HCI clusters.
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. |
|
Windows Update for Business |
Yes |
None. This update will be downloaded and installed automatically from Windows Update in accordance with configured policies. |
|
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 sync with WSUS if you configure Products and Classifications as follows: Product: Azure Stack HCI Classification: Security Updates |
File Information
For a list of the files that are provided in this update, download the file information for cumulative update 5003645.
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