July 20, 2024

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Microsoft fixes Windows TLS handshake failures in out-of-band updates

2 min read
Microsoft fixes Windows TLS handshake failures in out-of-band updates


Microsoft has issued an out-of-band (OOB) non-stability update to tackle an issue triggering SSL/TLS handshake failures on consumer and server platforms.

On influenced devices, customers will see SEC_E_Illegal_Information faults in programs when connections to servers expertise troubles. 

“We tackle an problem that may well affect some types of Safe Sockets Layer (SSL) and Transport Layer Stability (TLS) connections. These connections may have handshake failures,” Microsoft explains.

“For developers, the affected connections are likely to obtain a single or a lot more documents adopted by a partial history with a dimensions of fewer than 5 bytes inside of a one input buffer.”

The regarded situation resolved in today’s OOB updates affects numerous Home windows releases and editions, including:

  • ​Client: Home windows 11, model 22H2 Windows 11, edition 21H2 Windows 10, variation 21H2 Windows 10, model 21H1 Windows 10, version 20H2 Windows 10 Business LTSC 2019 Windows 10 Business LTSC 2016 Windows 10 Organization 2015 LTSB Windows 8.1 Windows 7 SP1
  • ​Server: Home windows Server 2022 Home windows Server 2019 Home windows Server 2016 Home windows Server 2012 R2 Windows Server 2012 Home windows Server 2008 R2 SP1

Offered by way of the Microsoft Update Catalog

The updates can’t be deployed via Windows Update, Home windows Update for Enterprise, or Home windows Server Update Expert services (WSUS).

You can put in them by downloading from the Microsoft Update Catalog and manually importing them into WSUS and Microsoft Endpoint Configuration Manager.

Microsoft has launched both of those standalone offers and cumulative updates:

  • Cumulative updates:
    • Windows 11, edition 21H2: KB5020387
    • Home windows Server 2022: KB5020436
    • Home windows 10, model 20H2 Home windows 10, version 21H1 Windows 10, model 22H1 Home windows 10 Enterprise LTSC 2021: KB5020435
    • Windows 10 Organization LTSC 2019 Home windows Server 2019: KB5020438
  • Standalone Updates:

The business is however functioning on a correct for Home windows 10 2016 LTSB, Home windows Server 2016, and Windows 10 2015 LTSB.

Soon after deploying the update, the Cluster Company may well are unsuccessful to start out because a Cluster Network Driver is not located thanks to an update to the PnP class drivers used by the provider.

Final thirty day period, Microsoft said that it accidentally mentioned the September Windows preview update in Windows Server Update Providers (WSUS).

Redmond extra that till the update was taken out from WSUS, it could nevertheless lead to safety update set up difficulties in some managed environments.

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