Denial of service in Huawei CloudEngine products

1) Use-after-free

EUVDB-ID: #VU57183

Risk: Low

CVSSv4.0: 4.9 [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/E:U/U:Clear]

CVE-ID: CVE-2021-37122

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei CloudEngine 12800: V200R005C10SPC800 - V200R019C00SPC800

Huawei CloudEngine 5800: V200R005C10SPC800 - V200R019C00SPC800

Huawei CloudEngine 6800: V200R005C10SPC800 - V200R019C00SPC800

Huawei CloudEngine 7800: V200R005C10SPC800 - V200R019C00SPC800

CPE2.3

• cpe:2.3:h:huawei:huawei_cloudengine_12800:V200R005C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_12800:V200R019C00SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_5800:V200R005C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_5800:V200R019C00SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R005C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R005C20SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R019C00SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_7800:V200R005C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_7800:V200R019C00SPC800:*:*:*:*:*:*:*

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.