Windows Server memory leak fix coming soon, Microsoft says
Microsoft has acknowledged a critical memory leak in the March 2024 Windows Server security update, which has caused widespread crashes among Windows domain controllers.
The news comes a few days after Bleeping Computer reported issues, citing complaints from system administrators posted online to platforms like Reddit.
Redmond has confirmed that the issue stems from an update (OS Build 20348.2340, KB5035857) released on March 12. It affects Windows Server 2022, Windows Server 2019, Windows Server 2016, and Windows Server 2012 R2.
The issue originates from a memory leak in the Local Security Authority Subsystem Service (LSASS) process, which was introduced in this month’s cumulative update. Online complaints detailed by Bleeping Computer showcase admins witnessing affected servers freezing and restarting unexpectedly as LSASS memory consumption ramps up leading to system failure.
Microsoft clarified that only some Windows Server platform variants in organizational environments are affected by this issue. Thus, Home devices seem unaffected by the update.
Understanding the critical nature of the problem, Microsoft has reassured users that they have identified the root cause and are in the process of developing a fix expected to be rolled out in the coming days.
Microsoft has acknowledged this as a known issue in the KB5035857 update. Further details of this and the changes made are highlighted on this page .
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Meanwhile, Microsoft indicates no viable solution for the issue exists – apart from extracting the contentious update from the implicated domain controllers, providing a temporary respite.
On top of that, this is not the first encounter Microsoft has with LSASS-related challenges. In the last month of 2022, December, analogue to the memory leakage issue impacted domain controllers following Windows Server’s updates. What’s more, a similar instance surfaced earlier in March 2022.
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