CVE-2021-21204 : Exploit Details and Defense Strategies

A Use after free vulnerability in Blink in Google Chrome allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Here's all you need to know about CVE-2021-21204.

Understanding CVE-2021-21204

This section provides insights into the impact, technical details, and mitigation strategies for CVE-2021-21204.

What is CVE-2021-21204?

CVE-2021-21204 is a Use after free vulnerability in Blink in Google Chrome on OS X systems prior to version 90.0.4430.72, which could be exploited by a remote attacker.

The Impact of CVE-2021-21204

The vulnerability in Google Chrome could allow a remote attacker to exploit heap corruption via a specially crafted HTML page.

Technical Details of CVE-2021-21204

This section outlines the vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The Use after free vulnerability in Blink in Google Chrome could lead to a remote attacker potentially exploiting heap corruption.

Affected Systems and Versions

Google Chrome versions prior to 90.0.4430.72 on OS X are affected by CVE-2021-21204.

Exploitation Mechanism

A remote attacker can exploit heap corruption by utilizing a crafted HTML page to trigger the Use after free vulnerability.

Mitigation and Prevention

Learn about the immediate steps to take, long-term security practices, and the importance of patching and updates to protect against CVE-2021-21204.

Immediate Steps to Take

Users are advised to update Google Chrome to version 90.0.4430.72 or later to mitigate the risk of exploitation.

Long-Term Security Practices

Maintain good browsing habits, avoid suspicious links, and regularly update the browser to ensure protection against known vulnerabilities.

Patching and Updates

Regularly check for and apply security patches and updates provided by Google Chrome to address known vulnerabilities and enhance system security.