CVE-2020-22429 Use after free in n/a

High 7.8 Published 3 May 2023 Updated 30 Jan 2025

A use-after-free vulnerability in Redox OS's gethostbyaddr function allows attackers to potentially execute arbitrary code or cause a denial of service.

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-2020-22429?

CVE-2020-22429 is a high-severity use after free vulnerability in n/a, published on 3 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

redox-os v0.1.0 was discovered to contain a use-after-free bug via the gethostbyaddr() function at /src/header/netdb/mod.rs.

Weakness: CWE-416

Which versions are affected by CVE-2020-22429?

It affects 1 product.

Products include Redox-Os Redox.

How do I fix CVE-2020-22429?

No fix has been published for CVE-2020-22429 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2020-22429 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-22429 exists.

Sources

Also known as GHSA-6vqj-7hpc-pvfj.