CVE-2021-0311 Explained : Impact and Mitigation

A vulnerability has been identified in Android that could result in remote information disclosure without the need for additional execution privileges. User interaction is necessary for exploitation.

Understanding CVE-2021-0311

This CVE refers to a potential out of bounds write vulnerability in Android's ElementaryStreamQueue::dequeueAccessUnitH264() function due to a missing bounds check.

What is CVE-2021-0311?

CVE-2021-0311 is a security vulnerability in Android that could allow an attacker to disclose remote information with no requirement for extra execution privileges.

The Impact of CVE-2021-0311

The impact of this vulnerability is the potential disclosure of sensitive information through user interaction, which could be exploited by malicious actors.

Technical Details of CVE-2021-0311

This section covers a detailed analysis of the vulnerability.

Vulnerability Description

The vulnerability arises in ElementaryStreamQueue::dequeueAccessUnitH264() of ESQueue.cpp in Android, allowing for an out of bounds write exploit.

Affected Systems and Versions

The affected versions include Android-9, Android-10, Android-11, Android-8.0, and Android-8.1.

Exploitation Mechanism

Exploiting this vulnerability requires user interaction and could lead to remote information disclosure.

Mitigation and Prevention

Learn how to protect your system and data from this vulnerability.

Immediate Steps to Take

Immediately update your Android device to the latest available security patches and stay informed about security bulletins.

Long-Term Security Practices

Implement a robust security protocol, including regular software updates and security checks to mitigate future risks.

Patching and Updates

Keep your Android system up to date with the latest patches and security releases to address this vulnerability effectively.