CVE-2021-22366 Memory corruption in eSE620X vESS

Medium 5.5 Published 22 Jun 2021 Updated 3 Aug 2024

An out-of-bounds read in Huawei eSE620X vESS allows attackers to cause a Denial of Service by sending crafted internal messages.

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-2021-22366?

CVE-2021-22366 is a medium-severity memory corruption vulnerability in eSE620X vESS, published on 22 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

There is an out-of-bounds read vulnerability in eSE620X vESS V100R001C10SPC200, V100R001C20SPC200, V200R001C00SPC300. The vulnerability is due to a function that handles an internal message contains an out-of-bounds read vulnerability. An attacker could crafted messages between system process, successful exploit could cause Denial of Service (DoS).

Weakness: CWE-125

Which versions are affected by CVE-2021-22366?

It affects 1 product.

Products include Huawei Ese620x Vess Firmware.

How do I fix CVE-2021-22366?

No fix has been published for CVE-2021-22366 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-22366 being exploited?

There is no known exploitation of CVE-2021-22366 in the wild and no public exploit code.

Sources

Also known as GHSA-35fw-8rmc-f2j5.