CVE-2023-0183

What it actually does

Out-of-bounds write in the kernel mode layer of the NVIDIA GPU Display Driver for Linux allowing modification of adjacent memory regions leading to denial of service and data tampering.

Why it matters to the business

Can cause system crashes, service interruptions, and data corruption on Linux-based servers, virtual machines, and hypervisor environments using affected NVIDIA GPUs, increasing operational downtime and recovery costs.

How an attack unfolds

An attacker with local access crafts input to the kernel mode driver component on a vulnerable Linux system, triggering the out-of-bounds write to corrupt memory and achieve denial of service or tampering without needing elevated privileges beyond local user context.

How to fix it

Apply the latest NVIDIA GPU Display Driver updates for Linux and any applicable patches for affected products including virtual GPU, Citrix Hypervisor, and related hypervisors; monitor vendor security advisories since no fixed versions are listed in the source data.

How to confirm the fix worked

Confirm updated driver versions are installed, review vendor release notes for resolution of the out-of-bounds write issue, and perform controlled testing to verify absence of memory corruption under expected workloads.

Typical attack path

1. Obtain local access on a target Linux system hosting an affected NVIDIA GPU driver
2. Identify presence of the vulnerable kernel mode driver
3. Craft and submit malicious input to trigger the out-of-bounds write
4. Observe resulting denial of service or data tampering effects

How to detect it

Examine kernel logs and system event records for driver-related crashes, memory errors, or unexpected GPU process terminations on Linux hosts; correlate with signs of data integrity failures.

What your security team should do

• Apply available driver updates to all affected Linux systems promptly
• Limit local access to systems with NVIDIA GPUs where feasible
• Incorporate GPU driver version checks into regular vulnerability scanning