CVE-2022-20091 Explained : Impact and Mitigation
Learn about CVE-2022-20091, a MediaTek processor vulnerability that allows local escalation of privilege without user interaction. Find out affected systems, exploitation details, and mitigation steps.
A potential vulnerability has been identified in the aee driver of certain MediaTek processors, which could result in local escalation of privilege without requiring user interaction. Here's what you need to know about CVE-2022-20091:
Understanding CVE-2022-20091
This section provides an overview of the vulnerability and its impact.
What is CVE-2022-20091?
The CVE-2022-20091 vulnerability exists in the aee driver, posing a risk of a use-after-free scenario due to a race condition. This flaw could allow an attacker to escalate privileges locally, requiring System execution privileges but no user interaction for exploitation.
The Impact of CVE-2022-20091
The impact of this vulnerability is the potential local elevation of privilege, which could lead to unauthorized access to sensitive information and system resources on affected devices.
Technical Details of CVE-2022-20091
In this section, we delve into the specific technical aspects of the CVE-2022-20091 vulnerability.
Vulnerability Description
The vulnerability stems from a race condition in the aee driver, allowing for a use-after-free scenario that could be exploited for privilege escalation.
Affected Systems and Versions
The vulnerability affects various MediaTek processors running Android 11.0 and 12.0, which are listed in detail under the 'Affected' section.
Exploitation Mechanism
Exploiting CVE-2022-20091 requires no user interaction, leveraging the race condition in the aee driver to achieve local privilege escalation.
Mitigation and Prevention
To safeguard systems from the CVE-2022-20091 vulnerability, immediate actions and long-term security practices are recommended.
Immediate Steps to Take
Immediate mitigation involves applying the provided patch ID: ALPS06209201 to address the vulnerability. It is crucial to ensure timely patching to prevent potential exploitation.
Long-Term Security Practices
Implementing robust security measures, such as regular security updates, proper access controls, and thorough vulnerability assessments, can enhance the overall security posture and reduce the risk of similar vulnerabilities.
Patching and Updates
Regularly updating systems with security patches and staying informed about security bulletins from MediaTek, Inc. can help mitigate the risks associated with CVE-2022-20091.