CVE-2021-0422 : Vulnerability Insights and Analysis
Learn about CVE-2021-0422, a vulnerability in MediaTek processors' memory management driver leading to a Denial of Service attack without user interaction. Find mitigation steps and update information.
A vulnerability has been identified in the memory management driver of certain MediaTek processors, potentially leading to a local denial of service attack without the need for user interaction.
Understanding CVE-2021-0422
This CVE pertains to a flaw in the memory management driver of MediaTek processors that could result in a system crash, causing a denial of service condition on the affected device.
What is CVE-2021-0422?
The CVE-2021-0422 vulnerability exists in the memory management driver of various MediaTek processors. The flaw could be exploited to trigger a system crash, resulting in a denial of service condition on the device.
The Impact of CVE-2021-0422
The impact of this vulnerability is a local denial of service attack, and it does not require any additional execution privileges. Furthermore, exploitation does not depend on user interaction, making it a concerning issue for affected devices.
Technical Details of CVE-2021-0422
This section provides technical insights into the vulnerability, including its description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability in the memory management driver of MediaTek processors lacks a necessary bounds check, potentially leading to a system crash and local denial of service.
Affected Systems and Versions
The vulnerability affects a wide range of MediaTek processors including MT6580, MT6753, MT6768, and more, running Android 10.0 and 11.0.
Exploitation Mechanism
Exploiting CVE-2021-0422 requires no user interaction. An attacker can trigger the vulnerability to crash the system, resulting in a denial of service condition.
Mitigation and Prevention
To address CVE-2021-0422, immediate steps can be taken to mitigate the risk and ensure long-term security measures.
Immediate Steps to Take
Users and system administrators are advised to apply relevant patches and updates provided by the vendor. Patch ID ALPS05403499 and Issue ID ALPS05381071 can help address the vulnerability.
Long-Term Security Practices
Maintaining regular security updates, implementing best practices for secure coding, and ensuring timely patch management are essential for long-term security.
Patching and Updates
It's crucial to stay informed about security bulletins from MediaTek and promptly install patches to protect the devices from potential threats.