Emergency patches have been or will be released by Microsoft and you will need to apply them to all servers. Hypervisors will also need to be patched. SQL Servers will also need to be patched. Application changes may also be recommended.
How does this affect my Azure SQL Database (PaaS)?
Patches have already been applied by Microsoft.
How does this affect my SQL Server instance?
Aside from hypervisor and OS patches, SQL Server patches will be made available. At this moment, only patches for SQL 2016 and 2017 are available and should be applied as soon as possible.
Additionally, Microsoft is reiterating some code recommendations as an additional step for applications that run on the same Windows Server as a SQL Server instance.
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