CVE-2020-9093 Use after free in Taurus-AL00A

Medium 5.5 Published 29 Dec 2020 Updated 4 Aug 2024

Attackers can cause denial of service in Huawei Taurus-AL00A by exploiting a use-after-free vulnerability via a crafted application.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2020-9093?

CVE-2020-9093 is a medium-severity use after free vulnerability in Huawei Taurus-AL00A, published on 29 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

There is a use after free vulnerability in Taurus-AL00A versions 10.0.0.1(C00E1R1P1). A module does not deal with specific message properly, which makes a function refer to memory after it has been freed. Attackers can exploit this vulnerability by running a crafted application with common privilege. This would compromise normal service.

Weakness: CWE-416

Which versions are affected by CVE-2020-9093?

It affects 1 product.

Products include Huawei Taurus-Al00a Firmware.

How do I fix CVE-2020-9093?

No fix has been published for CVE-2020-9093 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-2020-9093 being exploited?

There is no known exploitation of CVE-2020-9093 in the wild and no public exploit code.

Sources

Also known as GHSA-6496-p2qf-5gj8.