Cloud Defense Logo

Products

Solutions

Company

Book A Live Demo

CVE-2021-21166 Explained : Impact and Mitigation

Learn about CVE-2021-21166, a data race vulnerability in Google Chrome that allowed remote attackers to exploit heap corruption. Find out how to mitigate and prevent this security flaw.

A data race in audio in Google Chrome prior to version 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption through a crafted HTML page.

Understanding CVE-2021-21166

This section dives into the details of the CVE-2021-21166 vulnerability in Google Chrome.

What is CVE-2021-21166?

The CVE-2021-21166 vulnerability in Google Chrome is a data race in the audio component that existed before version 89.0.4389.72. This flaw enabled a remote attacker to potentially trigger heap corruption by directing a victim to a malicious HTML page.

The Impact of CVE-2021-21166

The impact of CVE-2021-21166 is significant as it allowed remote attackers to exploit heap corruption in Google Chrome, potentially leading to further exploitation or unauthorized access to sensitive information.

Technical Details of CVE-2021-21166

Taking a closer look at the technical aspects of the CVE-2021-21166 vulnerability.

Vulnerability Description

The vulnerability stemmed from an object lifecycle issue related to the audio functionality in Google Chrome, creating a scenario where heap corruption could be induced through a specifically crafted HTML page.

Affected Systems and Versions

Google Chrome versions prior to 89.0.4389.72 were impacted by this vulnerability, making them susceptible to potential exploitation by remote attackers.

Exploitation Mechanism

Exploiting CVE-2021-21166 involved leveraging the data race in the audio component of Google Chrome to trigger heap corruption remotely through a maliciously designed HTML page.

Mitigation and Prevention

Explore the steps to mitigate and prevent the CVE-2021-21166 vulnerability in Google Chrome.

Immediate Steps to Take

Users and administrators should promptly update Google Chrome to version 89.0.4389.72 or newer to remediate the vulnerability and protect systems from potential exploits.

Long-Term Security Practices

Incorporating regular software updates, security patches, and using caution while browsing the internet can help enhance overall system security and prevent future vulnerabilities.

Patching and Updates

Staying informed about the latest security updates from Google Chrome and applying patches as soon as they are available is crucial to maintaining a secure browsing environment.

Popular CVEs

CVE Id

Published Date

Is your System Free of Underlying Vulnerabilities?
Find Out Now