Input validation error in Huawei products - CVE-2021-22393

Vulnerability identifier: #VU51749

CSH Severity: Low

CVSS v4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-22393

CWE-ID: CWE-20

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to module design weakness. A remote attacker on the local network can send a large amount of specific messages 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 - update to V200R005C10SPC800+V200R005SPH026
Huawei CloudEngine 5800 - update to V200R005C10SPC800+V200R005SPH025
Huawei CloudEngine 6800 - update to V200R005C10SPC800+V200R005SPH026
Huawei CloudEngine 7800 - update to V200R005C10SPC800+V200R005SPH026

• https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20210324-01-dos-en

• Denial of service in several Huawei products