CVE-2020-9124 Denial of service in CloudEngine 12800

High 7.5 Published 29 Dec 2020 Updated 4 Aug 2024

An unauthenticated remote attacker can cause a memory leak in Huawei CloudEngine switches by sending specific messages, potentially leading to denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-9124?

CVE-2020-9124 is a high-severity denial of service vulnerability in Huawei CloudEngine 12800, published on 29 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a memory leak vulnerability in some versions of Huawei CloudEngine product. An unauthenticated, remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause memory leak.

Weakness: CWE-401

Which versions are affected by CVE-2020-9124?

It affects 4 products.

Products include Huawei Cloudengine 12800 Firmware, Huawei Cloudengine 5800 Firmware, Huawei Cloudengine 6800 Firmware, Huawei Cloudengine 7800 Firmware.

How do I fix CVE-2020-9124?

No fix has been published for CVE-2020-9124 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-9124 being exploited?

There is no known exploitation of CVE-2020-9124 in the wild and no public exploit code.

Sources

Also known as GHSA-3rff-xjq9-pg37.