CVE-2020-9237 Use after free in Taurus-AL00B

Medium 6.7 Published 17 Aug 2020 Updated 4 Aug 2024

Attackers can cause denial of service on Huawei Taurus-AL00B smartphones by exploiting a use-after-free vulnerability in a module lacking lock protection.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-9237?

CVE-2020-9237 is a medium-severity use after free vulnerability in Taurus-AL00B, published on 17 Aug 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Huawei smartphone Taurus-AL00B with versions earlier than 10.1.0.126(C00E125R5P3) have a user after free vulnerability. A module is lack of lock protection. Attackers can exploit this vulnerability by launching specific request. This could compromise normal service of the affected device.

Weakness: CWE-416

Which versions are affected by CVE-2020-9237?

It affects 1 product.

Products include Huawei Taurus-Al00b Firmware.

How do I fix CVE-2020-9237?

No fix has been published for CVE-2020-9237 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-2020-9237 being exploited?

There is no known exploitation of CVE-2020-9237 in the wild and no public exploit code.

Sources

Also known as GHSA-w7q6-2xg4-7447.