Denial of service in Huawei CloudEngine products

1) Release of invalid pointer or reference

EUVDB-ID: #VU59870

Risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-40042

CWE-ID: CWE-763 - Release of invalid pointer or reference

Exploit availability: No

Description

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

The vulnerability exists due to a release of invalid pointer in Huawei OptiX OSN 9800 U32 product. A remote authenticated attacker can send specially crafted messages and cause a denial of service condition in th target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Huawei CloudEngine 12800: V200R019C10SPC800 - V200R019C10SPC900

Huawei CloudEngine 5800: V200R019C10SPC800 - V200R020C00SPC600

Huawei CloudEngine 6800: V200R019C10SPC800 - V300R020C00SPC200

Huawei CloudEngine 7800: V200R019C10SPC800

CPE2.3

• cpe:2.3:h:huawei:huawei_cloudengine_12800:V200R019C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_12800:V200R019C10SPC900:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_5800:V200R019C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_5800:V200R020C00SPC600:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R019C10SPC800:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R019C10SPC900:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_6800:V200R020C00SPC600:*:*:*:*:*:*:*
• cpe:2.3:h:huawei:huawei_cloudengine_7800:V200R019C10SPC800:*:*:*:*:*:*:*

External links

https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20220112-01-invalid-en

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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