This fix addresses a remote code execution vulnerability in which a user who has administrative permissions modifies PolyBase service command-line parameters to activate a deprecated feature that runs the Data Warehouse (DW) Engine and Data Movement Service (DMS) control and data channels on raw Transmission Control Protocol (TCP) listeners. This deprecated feature is intended to run under a single SQL Platform Abstraction Layer (SQLPAL) instance in Kubernetes by having only the SQL Server port exposed outside the pod. The fix prevents PolyBase services from opening raw TCP listeners for the DW Engine and DMS control and data channels if the services start by having modified command-line parameters.

Affected Versions Disclaimer

The included affected builds are considered potentially affected, based on their release chronology relative to the identified fix.