CVE-2022-34326 Explained : Impact and Mitigation

A vulnerability in ambiot amb1_sdk potentially impacts Realtek RTL8195AM devices, allowing for a denial-of-service condition during Wi-Fi connection failures.

Understanding CVE-2022-34326

This section provides an overview of the CVE-2022-34326 vulnerability.

What is CVE-2022-34326?

The ambiot amb1_sdk (or SDK for Ameba1) before 2022-06-20 on Realtek RTL8195AM devices may experience a lockup of timer task and RX task during frequent and continuous Wi-Fi connection failures in Soft AP mode.

The Impact of CVE-2022-34326

The vulnerability could lead to a denial-of-service (DoS) condition on affected devices, potentially disrupting network connectivity and services.

Technical Details of CVE-2022-34326

In this section, we delve into the technical aspects of CVE-2022-34326.

Vulnerability Description

The issue arises due to a locking mechanism malfunction, triggered by specific conditions of Wi-Fi connection failures in Soft AP mode, affecting the timer and RX tasks.

Affected Systems and Versions

Realtek RTL8195AM devices are vulnerable to this issue when running ambiot amb1_sdk versions prior to 2022-06-20.

Exploitation Mechanism

Exploiting this vulnerability involves triggering a series of continuous Wi-Fi connection failures in Soft AP mode, causing the timer task and RX task lockup.

Mitigation and Prevention

Learn how to address and prevent the CVE-2022-34326 vulnerability in this section.

Immediate Steps to Take

If your organization uses Realtek RTL8195AM devices, consider implementing network monitoring and timely software updates to mitigate the risk.

Long-Term Security Practices

Establish a proactive approach to network security by regularly monitoring device performance and promptly addressing any connectivity issues.

Patching and Updates

Stay informed about security advisories from Realtek and apply relevant patches or firmware updates to protect devices from potential exploits.