NVIDIA License System - Delegated Licensing Service (DLS): An unauthorised action against the DLS reaches partial

Impact

An unauthorised action against the DLS reaches partial denial of service and disclosure of confidential information. A DLS outage eventually strands vGPU guests when cached licences expire, so this is an availability problem for the whole vGPU estate, not just a management-plane nuisance.

Who can reach it

Adjacent network, no privileges required. Anyone with a route to the licensing appliance - which is usually the same management VLAN as everything else.

What to do

Update the DLS appliance per bulletin 5570. Cost: appliance restart only. Confirm your licence lease duration so you know how long guests survive a DLS outage before this becomes a tenant-visible incident.

References