CVE-2021-30603 : Security Advisory and Response

A data race vulnerability in Google Chrome prior to version 92.0.4515.159 could allow a remote attacker to exploit heap corruption through a specially crafted HTML page.

Understanding CVE-2021-20657

This CVE record details a specific vulnerability in Google Chrome that could have serious security implications.

What is CVE-2021-20657?

CVE-2021-30603 is a data race vulnerability identified in the WebAudio component of Google Chrome before version 92.0.4515.159. This flaw could be exploited by a remote attacker to potentially orchestrate heap corruption by enticing a user to visit a malicious website.

The Impact of CVE-2021-20657

The impact of this vulnerability is significant as it could lead to remote code execution or a denial of service if successfully exploited. This puts users at risk of having their sensitive data compromised or the integrity of their systems compromised.

Technical Details of CVE-2021-20657

Understanding the technical aspects of CVE-2021-30603 is crucial for effective remediation and prevention strategies.

Vulnerability Description

The vulnerability arises from a data race issue in the WebAudio functionality of Google Chrome, potentially enabling an attacker to manipulate the heap memory through a specifically crafted HTML page.

Affected Systems and Versions

Google Chrome versions prior to 92.0.4515.159 are susceptible to this data race vulnerability. Users operating on these versions are advised to update to the latest secure version immediately.

Exploitation Mechanism

To exploit this vulnerability, an attacker would need to lure a user into accessing a malicious HTML page, triggering the data race condition and potentially leading to heap corruption.

Mitigation and Prevention

Taking proactive security measures is essential in mitigating the risks associated with CVE-2021-30603.

Immediate Steps to Take

Users are strongly recommended to update their Google Chrome browser to version 92.0.4515.159 or later to mitigate the risk of this vulnerability.

Long-Term Security Practices

Implementing robust security practices such as regular software updates, employing security tools, and maintaining awareness of potential threats can enhance overall security posture.

Patching and Updates

Stay informed about security updates released by Google Chrome and ensure timely installation of patches to address known vulnerabilities and enhance system security.