CVE-2020-9084 Use after free in Taurus-AN00B

Medium 6.5 Published 18 Sep 2020 Updated 4 Aug 2024

An authenticated local attacker can exploit a use-after-free flaw in Huawei Taurus devices to escalate privileges and compromise the service.

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

What is CVE-2020-9084?

CVE-2020-9084 is a medium-severity use after free vulnerability in Taurus-AN00B, published on 18 Sep 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

Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a use-after-free (UAF) vulnerability. An authenticated, local attacker may perform specific operations to exploit this vulnerability. Successful exploitation may cause the attacker to obtain a higher privilege and compromise the service.

Weakness: CWE-416

Which versions are affected by CVE-2020-9084?

It affects 1 product.

Products include Huawei Taurus-An00b Firmware.

How do I fix CVE-2020-9084?

No fix has been published for CVE-2020-9084 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-2020-9084 being exploited?

There is no known exploitation of CVE-2020-9084 in the wild and no public exploit code.

Sources

Also known as GHSA-v575-q5p6-4v97.