CVE-2021-34405 Null dereference in SHIELD TV

Medium 5.5 Published 18 Jan 2022 Updated 4 Aug 2024

An unchecked return value in the TrustZone TEE_Malloc function allows attackers to cause a denial of service on NVIDIA SHIELD TV devices.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-34405?

CVE-2021-34405 is a medium-severity vulnerability in NVIDIA SHIELD TV, published on 18 Jan 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NVIDIA Linux distributions contain a vulnerability in TrustZone’s TEE_Malloc function, where an unchecked return value causing a null pointer dereference may lead to denial of service.

Weakness: CWE-252

Which versions are affected by CVE-2021-34405?

It affects 1 product.

Products include Nvidia Shield Experience.

How do I fix CVE-2021-34405?

No fix has been published for CVE-2021-34405 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-34405 being exploited?

There is no known exploitation of CVE-2021-34405 in the wild and no public exploit code.

Sources

Also known as GHSA-78wc-5whv-3wwg.