CVE-2022-21753 : Security Advisory and Response
Discover the impact and mitigation strategies for CVE-2022-21753, a critical WLAN driver vulnerability in MediaTek devices running Android 11.0 & 12.0.
A vulnerability identified as CVE-2022-21753 has been discovered in WLAN drivers developed by MediaTek, Inc., affecting various versions of Android.
Understanding CVE-2022-21753
This section will discuss the details of the CVE-2022-21753 vulnerability found in MediaTek's WLAN drivers.
What is CVE-2022-21753?
The CVE-2022-21753 vulnerability in MediaTek's WLAN driver results from a missing bounds check, leading to a potential out-of-bounds write. This flaw could be exploited for local escalation of privilege without requiring user interaction.
The Impact of CVE-2022-21753
The impact of this vulnerability is the potential escalation of privileges on the affected systems running Android versions 11.0 and 12.0. Without proper mitigation, attackers could execute arbitrary code with elevated privileges.
Technical Details of CVE-2022-21753
In this section, we will delve into the technical aspects of CVE-2022-21753 to better understand its implications and impact.
Vulnerability Description
The vulnerability stems from the absence of a critical bounds check in MediaTek's WLAN driver, facilitating an out-of-bounds write that can be leveraged for privilege escalation attacks.
Affected Systems and Versions
The impacted systems include devices powered by MediaTek's processing units, such as MT6580, MT6768, MT6877, and more, running Android 11.0 and 12.0.
Exploitation Mechanism
Exploiting CVE-2022-21753 does not require any user interaction, making it a critical security concern for devices utilizing MediaTek's affected chipsets and Android versions.
Mitigation and Prevention
To protect systems from the CVE-2022-21753 vulnerability, immediate actions along with long-term security measures must be implemented to reduce the risk of exploitation.
Immediate Steps to Take
- Apply the provided patch ID: ALPS06493873 to address the vulnerability promptly.
Long-Term Security Practices
- Regularly update firmware and security patches released by MediaTek to safeguard against potential vulnerabilities.
Patching and Updates
- Stay informed about security bulletins and updates from MediaTek to stay ahead of emerging threats and ensure system security.