CVE-2021-0418 : Security Advisory and Response

A vulnerability has been found in the memory management driver of various MediaTek processors, potentially leading to a system crash due to improper input validation. This flaw could allow for a local denial of service attack without requiring any additional execution privileges. No user interaction is needed for an attacker to exploit this vulnerability. The issue has been assigned Patch ID: ALPS05403499 and Issue ID: ALPS05336706.

Understanding CVE-2021-0418

This section will dive into the details of CVE-2021-0418.

What is CVE-2021-0418?

The vulnerability in the memory management driver of MediaTek processors could result in a system crash and local denial of service without the need for additional execution privileges or user interaction.

The Impact of CVE-2021-0418

The impact of this vulnerability is the potential for attackers to disrupt the normal operation of devices utilizing the affected MediaTek processors, leading to a denial of service situation.

Technical Details of CVE-2021-0418

Let's explore the technical aspects of CVE-2021-0418.

Vulnerability Description

The vulnerability arises from improper input validation in the memory management driver, allowing for the exploitation of the system crash leading to a denial of service.

Affected Systems and Versions

The vulnerability affects a wide range of MediaTek processors, including models like MT6580, MT6753, MT6797, and many more, running Android versions 10.0 and 11.0.

Exploitation Mechanism

Attackers can exploit this vulnerability to cause a system crash and initiate a denial of service attack without the need for any user interaction.

Mitigation and Prevention

Here's how you can address CVE-2021-0418 to enhance security.

Immediate Steps to Take

It is recommended to apply the provided Patch ID: ALPS05403499 to address the vulnerability and prevent potential denial of service attacks on affected systems.

Long-Term Security Practices

Implementing regular security updates and patches for both the operating system and applications can help mitigate the risk of exploitation.

Patching and Updates

Stay informed about security bulletins and advisories related to the MediaTek processors to promptly apply relevant updates and patches for enhanced security.