CVE-2022-20221 Explained : Impact and Mitigation

This article provides insights into CVE-2022-20221, a vulnerability in the Android operating system that could lead to remote information disclosure over Bluetooth.

Understanding CVE-2022-20221

This section delves into the details of the CVE-2022-20221 vulnerability in Android.

What is CVE-2022-20221?

CVE-2022-20221 involves an out-of-bounds read vulnerability in the avrc_ctrl_pars_vendor_cmd of avrc_pars_ct.cc in Android. It arises due to improper input validation and can potentially result in remote information disclosure over Bluetooth.

The Impact of CVE-2022-20221

This vulnerability could be exploited without the need for user interaction, allowing malicious actors to access sensitive information remotely.

Technical Details of CVE-2022-20221

This section covers the technical specifics of CVE-2022-20221.

Vulnerability Description

The vulnerability arises from improper input validation in the avrc_ctrl_pars_vendor_cmd of avrc_pars_ct.cc in Android, leading to an out-of-bounds read.

Affected Systems and Versions

The affected versions include Android-10, Android-11, Android-12, and Android-12L.

Exploitation Mechanism

The vulnerability can be exploited over Bluetooth, potentially resulting in remote information disclosure.

Mitigation and Prevention

Explore the strategies to mitigate and prevent the exploitation of CVE-2022-20221.

Immediate Steps to Take

Users are advised to apply security patches and updates provided by Android to address this vulnerability.

Long-Term Security Practices

Implementing robust security measures and staying updated with the latest Android security bulletins can help prevent potential exploits.

Patching and Updates

Regularly check for and apply security patches released by Google for Android to ensure protection against CVE-2022-20221.