Anyone who runs a Windows server and uses it to manage an Active Directory may have a problem after applying the updates from Microsoft's March patch day. The server can stop and restart.
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In the release health notes for Windows Server, Microsoft's developers write that after installing the March security update KB5035857, the Local Security Authority Subsystem Service (LSASS) may have memory leaks on domain controllers (DCs). This can be observed if on-premise or cloud-based Active Directory Domain Controllers send Kerberos authentication requests.
Windows Server: Crashes after “extreme memory leaks”
Memory leaks often lead to performance degradation. The developers explain that after “extreme memory leaks” the LSASS service can crash, which triggers an unplanned restart of the underlying domain controller. Microsoft emphasizes that this does not occur on home devices, but only in environments in organizations that use the Windows Server platform.
The good news: According to the information, the programmers have tracked down the root of the problem. They are therefore working on a solution that will be published in the coming days.
The specifically affected systems are Windows Server 2012 R2, Windows Server 2016, Windows Server 2019 and Windows Server 2022, both in the local network and in the cloud.
Back in January, Microsoft had problems with the Windows updates for Patch Tuesday. They failed to install with an error code message, 0x80070643. The company then gave tips on how to successfully apply the update.
(dmk)