CVE-2021-38785 Null dereference in n/a

High 7.5 Published 18 Jan 2022 Updated 4 Aug 2024

A NULL pointer dereference in the Allwinner R818 Android camera driver allows attackers to cause a system crash via a specific ioctl command.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-38785?

CVE-2021-38785 is a high-severity vulnerability in n/a, published on 18 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a NULL pointer deference in the Allwinner R818 SoC Android Q SDK V1.0 camera driver /dev/cedar_dev that could use the ioctl cmd IOCTL_GET_IOMMU_ADDR to cause a system crash.

Weakness: CWE-476

Which versions are affected by CVE-2021-38785?

It affects 1 product.

Products include Allwinnertech Android Q Sdk.

How do I fix CVE-2021-38785?

No fix has been published for CVE-2021-38785 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-38785 being exploited?

There is no known exploitation of CVE-2021-38785 in the wild and no public exploit code.

Sources

Also known as GHSA-x63x-qrg6-ggcj.