CVE-2019-5256 Null dereference in AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace AntiDDoS8000;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG6000V;eSpace U1981

Medium 5.5 Published 13 Dec 2019 Updated 4 Aug 2024

A local attacker can cause a denial of service and process reboot on various Huawei network security devices by sending crafted parameters that trigger a null pointer dereference.

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-2019-5256?

CVE-2019-5256 is a medium-severity vulnerability in Huawei Nip6300 Firmware, published on 13 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Certain Huawei products (AP2000;IPS Module;NGFW Module;NIP6300;NIP6600;NIP6800;S5700;SVN5600;SVN5800;SVN5800-C;SeMG9811;Secospace AntiDDoS8000;Secospace USG6300;Secospace USG6500;Secospace USG6600;USG6000V;eSpace U1981) have a null pointer dereference vulnerability. The system dereferences a pointer that it expects to be valid, but is NULL. A local attacker could exploit this vulnerability by sending crafted parameters. A successful exploit could cause a denial of service and the process reboot.

Weakness: CWE-476

Which versions are affected by CVE-2019-5256?

It affects 17 products.

Products include Huawei Ap2000 Firmware, Huawei Espace U1981 Firmware, Huawei Ips Firmware, Huawei Ngfw Firmware, Huawei Nip6300 Firmware, Huawei Nip6600 Firmware and 11 more.

How do I fix CVE-2019-5256?

No fix has been published for CVE-2019-5256 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-5256 being exploited?

There is no known exploitation of CVE-2019-5256 in the wild and no public exploit code.

All Huawei Nip6300 Firmware vulnerabilities

Sources

Also known as GHSA-9x6m-qh7h-v267.