CVE-2021-39628 : Security Advisory and Response

This CVE-2021-39628 article provides details about an information disclosure vulnerability in Android versions 10 and 11 that could lead to local information exposure without the need for user interaction.

Understanding CVE-2021-39628

This section delves into the important points related to CVE-2021-39628.

What is CVE-2021-39628?

CVE-2021-39628 refers to a potential disclosure of notification content on the lock screen in Android due to a logic error in the code, leading to local information disclosure with no additional execution privileges required.

The Impact of CVE-2021-39628

The vulnerability can potentially expose notification content on the lock screen, risking local information disclosure without requiring user interaction.

Technical Details of CVE-2021-39628

This section explores the technical aspects of CVE-2021-39628.

Vulnerability Description

The issue originates in StatusBar.java and arises from a logic error in the code, allowing disclosure of notification content on the lock screen.

Affected Systems and Versions

Product: Android
Versions Affected: Android-10, Android-11

Exploitation Mechanism

The vulnerability can be exploited locally without needing additional execution privileges or user interaction.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2021-39628.

Immediate Steps to Take

Monitor official Android security bulletins for patches and updates.
Implement lock screen security measures to limit unauthorized access to notifications.

Long-Term Security Practices

Regularly update the Android OS to the latest version that includes security patches.
Educate users on the importance of lock screen security awareness.

Patching and Updates

Stay informed about official Android security bulletins, and promptly apply relevant patches to address the vulnerability.