CVE-2021-0664 : Exploit Details and Defense Strategies

This CVE-2021-0664 affects multiple MediaTek devices running Android 10.0 and 11.0. The vulnerability lies in ccu, allowing a malicious actor to exploit a memory corruption issue to achieve local escalation of privilege without requiring user interaction.

Understanding CVE-2021-0664

This section provides an overview of the vulnerability including its impact, affected systems, and exploitation mechanism.

What is CVE-2021-0664?

CVE-2021-0664 is a security vulnerability found in ccu in MediaTek devices. It enables attackers to execute an elevation of privilege attack without the need for user interaction.

The Impact of CVE-2021-0664

The impact of this vulnerability is significant as it could lead to local escalation of privilege on affected devices, potentially allowing attackers to execute unauthorized actions with system execution privileges.

Technical Details of CVE-2021-0664

Here, we delve into specific technical aspects of the CVE, including vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The vulnerability in ccu is due to a use-after-free scenario resulting in memory corruption. This flaw enables attackers to gain escalated privileges on the device.

Affected Systems and Versions

Devices powered by MediaTek processors including MT6765, MT6768, MT6771, MT6779, MT6785, MT6833, MT6853, MT6873, MT6877, MT6885, MT6889, MT8183, MT8385, MT8768, and MT8788, running Android 10.0 and 11.0 are impacted by CVE-2021-0664.

Exploitation Mechanism

Exploiting this vulnerability does not require user interaction, making it a critical security concern for devices running affected MediaTek chipsets.

Mitigation and Prevention

Learn about the immediate steps to take and long-term security practices to mitigate the risks posed by CVE-2021-0664.

Immediate Steps to Take

Users are advised to apply patches provided by MediaTek to address the vulnerability and bolster the security of their devices.

Long-Term Security Practices

Implementing robust security measures, such as keeping devices up to date with the latest security patches and adopting secure computing practices, can help prevent exploitation of similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates released by MediaTek and promptly install them on your device to stay protected against known vulnerabilities.