CVE-2021-30629 : Exploit Details and Defense Strategies

A use after free vulnerability in Google Chrome prior to 93.0.4577.82 could allow a remote attacker to exploit heap corruption via a crafted HTML page.

Understanding CVE-2021-30629

This CVE ID refers to a specific security issue identified in Google Chrome.

What is CVE-2021-30629?

CVE-2021-30629 is a use after free vulnerability in Google Chrome versions earlier than 93.0.4577.82. It could enable an attacker who has compromised the renderer process to potentially exploit heap corruption through a malicious HTML page.

The Impact of CVE-2021-30629

The impact of this vulnerability is significant as it allows a remote attacker to potentially execute arbitrary code on the affected system, leading to further compromise and data breaches.

Technical Details of CVE-2021-30629

This section outlines the technical aspects of the CVE in more detail.

Vulnerability Description

The vulnerability arises from a use after free issue in the Permissions component of Google Chrome.

Affected Systems and Versions

Google Chrome versions prior to 93.0.4577.82 are affected by this security flaw.

Exploitation Mechanism

An attacker with access to the compromised renderer process can exploit heap corruption by leveraging a specially crafted HTML page.

Mitigation and Prevention

To protect systems from CVE-2021-30629, immediate steps can be taken along with long-term security practices.

Immediate Steps to Take

Users and administrators should update Google Chrome to version 93.0.4577.82 or newer to mitigate this vulnerability.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and staying informed about security updates are essential for long-term protection.

Patching and Updates

Regularly apply security patches and updates for Google Chrome to prevent exploitation of known vulnerabilities.