CVE-2021-22304 Use after free in Taurus-AL00A

Low 3.3 Published 6 Feb 2021 Updated 3 Aug 2024

Attackers can cause a module crash and service disruption by sending specific messages to the affected Huawei Taurus device.

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-2021-22304?

CVE-2021-22304 is a low-severity use after free vulnerability in Taurus-AL00A, published on 6 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

There is a use after free vulnerability in Taurus-AL00A 10.0.0.1(C00E1R1P1). A module may refer to some memory after it has been freed while dealing with some messages. Attackers can exploit this vulnerability by sending specific message to the affected module. This may lead to module crash, compromising normal service.

Weakness: CWE-416

Which versions are affected by CVE-2021-22304?

It affects 1 product.

Products include Huawei Taurus-Al00a Firmware.

How do I fix CVE-2021-22304?

No fix has been published for CVE-2021-22304 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-2021-22304 being exploited?

There is no known exploitation of CVE-2021-22304 in the wild and no public exploit code.

Sources

Also known as GHSA-fpwv-gp97-jc85.