Microsoft OOB Updates

Microsoft released an important Out-Of-Band (OOB) update yesterday, which is an emergency fix to be installed before the upcoming April updates, for Windows Server versions 2022, 2016, and 2012 (not yet available for the 2019 version).

This update fixes a know issue that was identified in the last update in March: the problem afflicts the Active Directory Domain Controllers’ LSASS service, where a memory leak during kerberos authentication requests can cause the service to crash and unexpectedly reboot the server.

Microsoft recommends installing the update immediately in case your system falls into the described case scenario.

https://learn.microsoft.com/en-us/windows/release-health/status-windows-server-2022#3271msgdesc

Below are the reference KBs for the specific versions:

Windows Server 2022: KB5037422
Windows Server 2019: KB5037425
Windows Server 2016: KB5037423
Windows Server 2012 R2: KB5037426

EDIT: The update for Windows Server 2019 was realeased yesterday.

Veeam 11a Patch – EOS

As you may know, as of March 1, 2024, several outdated versions of Veeam products have gone into EOS (End of Support).

Examples of the most used products include Veeam B&R 11 and Veeam ONE 11:

To see the full list of Veeam product lifecycle visit the following link:

https://www.veeam.com/product-lifecycle.html

This week, a little surprisingly, a cumulative patch for Veeam Backup & Replication V11a was released:

https://www.veeam.com/kb4245

This update comes especially to those customers who due to usage requirements need to maintain compatibility with older hypervisors ( for example VMware vSphere/Esxi 5.5).

The patch contains some product fixes, and also some security fixes of third-party components included in the software, such as VDDK, OpenSSL, liblz4, zlib and Putty:

https://www.veeam.com/kb4245

Important note: If you decide to install this patch, you will no longer be able to upgrade to V12.1, but will have to wait for the release of the next minor update V12.2 (expected in the second half of 2024).

So if you are at V11 and have no compatibility issues with the rest of the infrastructure, the advice is to upgrade to the latest V12.1 version, taking advantage of the many added features immediately.

Below is one last link that may be useful when planning upgrades, the upgrade-path link for Veeam B&R.

https://www.veeam.com/kb2053

Enjoy! 💚