Use-after-free in Huawei products - CVE-2021-37122

Vulnerability identifier: #VU57183

CSH Severity: Low

CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-37122

CWE-ID: CWE-416

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error. A remote attacker on the local network can send a specially crafted packet and perform a denial of service (DoS) attack.

Huawei CloudEngine 12800
Huawei CloudEngine 5800
Huawei CloudEngine 6800
Huawei CloudEngine 7800

Install updates from vendor's website.

Huawei CloudEngine 12800 - addressed in versions V200R005SPH027, V200R019C10SPC800
Huawei CloudEngine 5800 - addressed in versions V200R005SPH027, V200R019C10SPC800
Huawei CloudEngine 6800 - addressed in versions V200R005SPH027, V200R019C10SPC800
Huawei CloudEngine 7800 - addressed in versions V200R005SPH027, V200R019C10SPC800

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20211008-01-cloudengine-en

• Denial of service in Huawei CloudEngine products