CVE-2022-21771 Explained : Impact and Mitigation
Learn about CVE-2022-21771, a MediaTek GED driver vulnerability impacting Android 11.0 and 12.0. Find out the impact, affected systems, exploitation, and mitigation steps.
This article discusses CVE-2022-21771, a security vulnerability found in GED driver affecting various MediaTek products running Android 11.0 and 12.0.
Understanding CVE-2022-21771
CVE-2022-21771 is a use after free vulnerability in the GED driver that could be exploited to achieve local escalation of privilege without the need for user interaction.
What is CVE-2022-21771?
The vulnerability in the GED driver of certain MediaTek products could allow an attacker to gain elevated privileges on the system without requiring any action from the user.
The Impact of CVE-2022-21771
This vulnerability poses a significant risk as it could be exploited by a local attacker to escalate their privileges on the affected system, potentially leading to unauthorized access and control.
Technical Details of CVE-2022-21771
The technical details reveal that the vulnerability arises due to a race condition, resulting in a use after free scenario in the GED driver component.
Vulnerability Description
The use after free issue in the GED driver could be triggered by an attacker to manipulate system memory, potentially leading to privilege escalation.
Affected Systems and Versions
Various MediaTek products including MT6580, MT6735, MT6785, and more running Android 11.0 and 12.0 are impacted by this vulnerability.
Exploitation Mechanism
The vulnerability can be exploited locally without requiring any user interaction, making it easier for threat actors to leverage this flaw for malicious activities.
Mitigation and Prevention
To address CVE-2022-21771, it is crucial to take immediate steps, implement long-term security practices, and ensure timely patching and updates.
Immediate Steps to Take
Users and organizations should apply patches provided by MediaTek to mitigate the risk associated with this vulnerability.
Long-Term Security Practices
Enhancing overall system security, implementing least privilege principles, and conducting regular security assessments are essential for preventing similar vulnerabilities.
Patching and Updates
Regularly update and patch affected systems with the latest fixes and security updates to protect against known vulnerabilities.