Microsoft releases out-of-band updates to fix Windows Server authentication problems

Microsoft has released a slew of emergency updates for various editions of Windows Server following the discovery of an authentication issue caused by this month's Patch Tuesday updates.

The updates (KB5008601, KB5008602, KB5008603, KB5008604, KB5008605 and KB5008606) are available for Windows Server 2008 SP2 up to Windows Server 2019. Although these are emergency, out-of-band updates, system administrators will still need to manually download and install them on affected domain controllers as Microsoft is not making them available via Windows Update.

See also:

• Microsoft gives Windows Subsystem for Linux a new icon, fixes issues and updates kernel
• Microsoft releases KB5007215 update to fix Windows 11 problems and boost security
• Microsoft announces General Availability of PowerShell 7.2

Microsoft says of the updates: "Addresses a known issue that might cause authentication failures related to Kerberos tickets you acquired from Service for User to Self (S4U2self). This issue occurs after you install the November 9, 2021 security updates on domain controllers (DC) that are running Windows Server".

Here's the full list of updates, complete with download links:

• Windows Server 2008 SP2: KB5008606
• Windows Server 2008 R2 SP1: KB5008605
• Windows Server 2012: KB5008604
• Windows Server 2012 R2: KB5008603
• Windows Server 2016: KB5008601
• Windows Server 2019: KB5008602

As has become fairly typical with update from Microsoft, these patches are known to cause printing issues for some users. Microsoft is currently investigating and will release a fix in due course.

Image credit: Sundry Photography / Shutterstock