CVE-2021-38783 Memory corruption in n/a

High 7.5 Published 18 Jan 2022 Updated 4 Aug 2024

An out-of-bounds write in the Allwinner R818 Android camera driver allows attackers to cause system crashes or escalate privileges.

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-2021-38783?

CVE-2021-38783 is a high-severity memory corruption 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 Out-of-Bound Write in the Allwinner R818 SoC Android Q SDK V1.0 camera driver "/dev/cedar_dev" through iotcl cmd IOCTL_SET_PROC_INFO and IOCTL_COPY_PROC_INFO, which could cause a system crash or EoP.

Weakness: CWE-787

Which versions are affected by CVE-2021-38783?

It affects 1 product.

Products include Allwinnertech Android Q Sdk.

How do I fix CVE-2021-38783?

No fix has been published for CVE-2021-38783 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-38783 being exploited?

There is no known exploitation of CVE-2021-38783 in the wild and no public exploit code.

Sources

Also known as GHSA-pw3j-7fmh-8vpr.