CVE-2021-22321 Use after free in NIP6600;NIP6800;S12700;S1700;S2700;S5700;S6700;S7700;S9700;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG9500

Medium 5.3 Published 22 Mar 2021 Updated 3 Aug 2024

Attackers can trigger a use-after-free vulnerability in Huawei network devices, causing service disruption and compromising normal operations.

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-2021-22321?

CVE-2021-22321 is a medium-severity use after free vulnerability in Huawei Nip6300 Firmware, published on 22 Mar 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a use-after-free vulnerability in a Huawei product. A module cannot deal with specific operations in special scenarios. Attackers can exploit this vulnerability by performing malicious operations. This can cause memory use-after-free, compromising normal service. Affected product include some versions of NIP6300, NIP6600, NIP6800, S1700, S2700, S5700, S6700 , S7700, S9700, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.

Weakness: CWE-416

Which versions are affected by CVE-2021-22321?

It affects 14 products.

Products include Huawei Nip6300 Firmware, Huawei Nip6600 Firmware, Huawei Nip6800 Firmware, Huawei S12700 Firmware, Huawei S1700 Firmware, Huawei S2700 Firmware and 8 more.

How do I fix CVE-2021-22321?

No fix has been published for CVE-2021-22321 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-2021-22321 being exploited?

There is no known exploitation of CVE-2021-22321 in the wild and no public exploit code.

All Huawei Nip6300 Firmware vulnerabilities

Sources

Also known as GHSA-p3qf-gvrh-m63f.