CVE-2021-1056 Missing authorization in NVIDIA GPU Display Driver

What is CVE-2021-1056?

CVE-2021-1056 is a high-severity missing authorization vulnerability in Debian Debian Linux, published on 8 Jan 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NVIDIA GPU Display Driver for Linux, all versions, contains a vulnerability in the kernel mode layer (nvidia.ko) in which it does not completely honor operating system file system permissions to provide GPU device-level isolation, which may lead to denial of service or information disclosure.

Weakness: CWE-276

Which versions are affected by CVE-2021-1056?

It affects 2 products.

Products include Debian Debian Linux, Nvidia Gpu Driver.

How do I fix CVE-2021-1056?

Apply the vendor's patch.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-1056 being exploited?

There is no known exploitation of CVE-2021-1056 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2021-1056, GHSA-f8fj-4gwg-crcc, UBUNTU-CVE-2021-1056.