CVE-2021-22332 : Vulnerability Insights and Analysis

A pointer double free vulnerability in certain versions of Huawei CloudEngine devices could allow attackers to crash modules and compromise normal service.

Understanding CVE-2021-22332

This CVE discloses a critical vulnerability in Huawei CloudEngine 5800, 6800, 7800, and 12800 devices.

What is CVE-2021-22332?

CVE-2021-22332 is a pointer double free vulnerability found in multiple CloudEngine models. Attackers can exploit this flaw to cause a pointer double free leading to module crashes.

The Impact of CVE-2021-22332

If exploited, this vulnerability could result in a compromise of normal service due to module crashes on affected devices.

Technical Details of CVE-2021-22332

This section delves into the specifics of the vulnerability.

Vulnerability Description

A pointer double free flaw enables attackers to crash functional modules by manipulating memory pointers.

Affected Systems and Versions

CloudEngine 5800, 6800, 7800, and 12800 devices running V200R002C50SPC800, V200R003C00SPC810, V200R005C00SPC800, and V200R005C10SPC800 are impacted.

Exploitation Mechanism

By executing a malicious operation on the affected devices, attackers can cause a pointer double free, leading to module crashes.

Mitigation and Prevention

To secure your environment from CVE-2021-22332, consider the following steps.

Immediate Steps to Take

Apply vendor-provided patches immediately.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update and patch your Huawei CloudEngine devices.
Implement network segmentation to contain potential breaches.

Patching and Updates

Stay informed about security updates and patches released by Huawei to address this vulnerability.