CVE-2022-42755 : What You Need to Know

A security vulnerability has been identified in Unisoc wlan driver that could potentially lead to a denial of service attack on local wlan services.

Understanding CVE-2022-42755

This CVE involves a missing bounds check in the Unisoc wlan driver, posing a risk of local denial of service within wlan services.

What is CVE-2022-42755?

The CVE-2022-42755 vulnerability in Unisoc wlan driver lacks proper bounds checking, creating a security gap for potential local denial of service attacks on wlan services.

The Impact of CVE-2022-42755

The impact of CVE-2022-42755 could result in a local denial of service situation within wlan services, affecting the availability and performance of the systems.

Technical Details of CVE-2022-42755

This section covers the technical aspects and details related to CVE-2022-42755.

Vulnerability Description

The vulnerability in the Unisoc wlan driver arises from a missing bounds check, leaving room for exploitation to trigger a local denial of service scenario.

Affected Systems and Versions

Vendor: Unisoc (Shanghai) Technologies Co., Ltd. Products Affected: SC9863A, SC9832E, SC7731E, T610, T310, T606, T760, T610, T618, T606, T612, T616, T760, T770, T820, S8023 Affected Versions: Android10, Android11, Android12

Exploitation Mechanism

The vulnerability can be exploited locally to trigger a denial of service attack within wlan services, impacting the normal operation of affected systems.

Mitigation and Prevention

In this section, we discuss the steps to mitigate and prevent the exploitation of CVE-2022-42755.

Immediate Steps to Take

Update the wlan driver to the latest secure version provided by Unisoc.
Implement network-level security controls to detect and prevent potential denial of service attacks.

Long-Term Security Practices

Regularly monitor and audit wlan services for any unusual activities or performance issues.
Educate system administrators and users on best security practices to prevent and respond to security incidents.

Patching and Updates

Stay informed about security updates and patches released by Unisoc for the affected products and versions. Promptly apply these patches to mitigate the vulnerability.