NVIDIA vGPU Manager (vGPU plugin): Guest-supplied size not validated in the vGPU plugin

Impact

Guest-supplied size not validated in the vGPU plugin; a tenant tampers with host state or crashes the shared GPU. vGPU 8.x before 8.5, 10.x before 10.4, and 11.0.

Who can reach it

Any unprivileged user inside a guest VM with a vGPU.

What to do

Upgrade the vGPU Manager on the hypervisor host to the fixed vGPU release. The host component is a kernel module inside the hypervisor, so this is a full node drain: evacuate or power off every tenant VM on the host, upgrade, reboot the host. Guest drivers must be kept within the supported version skew and updated per VM (guest reboot). No VBIOS flash, but expect a maintenance window per host and a matching hypervisor-vendor package (VMware/Citrix/KVM/Nutanix builds ship separately).

References

Related entries

• NVIDIA vGPU Manager (vGPU plugin): NULL dereference in the vGPU plugin reachable from a guest - one tenant crashes theCVE-2020-5989 · NVIDIA vGPU Manager (vGPU plugin)Medium
• NVIDIA vGPU Manager (vGPU plugin): Unvalidated guest input causes unbounded resource consumption on the host, so oneCVE-2021-1066 · NVIDIA vGPU Manager (vGPU plugin)Medium
• NVIDIA vGPU Manager (vGPU plugin): Information retrievable by a guest that defeats ASLR on the host side. On its own itCVE-2021-1087 · NVIDIA vGPU Manager (vGPU plugin)Medium
• NVIDIA vGPU Manager (vGPU plugin): NULL dereference in the vGPU plugin, guest-reachableCVE-2021-1101 · NVIDIA vGPU Manager (vGPU plugin)Medium
• NVIDIA vGPU Manager (vGPU plugin): Guest input drives the vGPU plugin into a floating-point exception and takes theCVE-2021-1102 · NVIDIA vGPU Manager (vGPU plugin)Medium
• NVIDIA vGPU Manager (vGPU plugin): Guest-reachable NULL dereference in the vGPU plugin causing denial of service acrossCVE-2021-1122 · NVIDIA vGPU Manager (vGPU plugin)Medium