CVE-2021-39666 Explained : Impact and Mitigation

This CVE article provides details about a vulnerability in Android versions 11 and 12 that could lead to local information disclosure.

Understanding CVE-2021-39666

This section explains the nature of the vulnerability in Android versions 11 and 12.

What is CVE-2021-39666?

CVE-2021-39666 pertains to an out-of-bounds read vulnerability in MediaMetricsItem.h in Android devices. This flaw could allow attackers to disclose local information without requiring additional privileges or user interaction.

The Impact of CVE-2021-39666

The vulnerability poses a risk of local information disclosure without the need for any special privileges or user interaction.

Technical Details of CVE-2021-39666

Explore the technical aspects and implications of the CVE-2021-39666 vulnerability.

Vulnerability Description

The issue arises due to improper input validation in the extract of MediaMetricsItem.h, leading to the potential out-of-bounds read exploit.

Affected Systems and Versions

Product: Android
Versions: Android-11, Android-12

Exploitation Mechanism

The vulnerability can be exploited to disclose local information without requiring additional execution privileges or user interaction.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-39666.

Immediate Steps to Take

Implement security patches provided by Android for affected versions.
Monitor official Android security bulletins for updates and advisories.

Long-Term Security Practices

Regularly update Android devices to the latest software versions.
Maintain awareness of security vulnerabilities and follow best practices for secure device usage.

Patching and Updates

Ensure the timely installation of security patches and updates released by Android to address the CVE-2021-39666 vulnerability.