CVE-2021-4056 Explained : Impact and Mitigation

A type confusion vulnerability was discovered in Google Chrome prior to version 96.0.4664.93, allowing a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Understanding CVE-2021-4056

This section delves into the details of the CVE-2021-4056 vulnerability in Google Chrome.

What is CVE-2021-4056?

CVE-2021-4056 is a type confusion vulnerability present in the loader of Google Chrome before version 96.0.4664.93. This vulnerability could be exploited by a remote attacker through a specially crafted HTML page.

The Impact of CVE-2021-4056

The impact of CVE-2021-4056 could lead to heap corruption, potentially allowing the attacker to execute arbitrary code on the affected system.

Technical Details of CVE-2021-4056

This section outlines the technical details associated with CVE-2021-4056.

Vulnerability Description

The vulnerability arises from a type confusion issue within the loader component of Google Chrome, enabling unauthorized access to memory areas.

Affected Systems and Versions

Google Chrome versions prior to 96.0.4664.93 are affected by this vulnerability.

Exploitation Mechanism

By enticing a user to visit a malicious website or open a specially crafted HTML page, an attacker could trigger the exploitation of this vulnerability.

Mitigation and Prevention

To safeguard systems from CVE-2021-4056, immediate actions and long-term security practices should be implemented.

Immediate Steps to Take

Users are advised to update Google Chrome to version 96.0.4664.93 or newer to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure browsing habits and regularly updating software can help prevent similar vulnerabilities in the future.

Patching and Updates

Regularly monitor security advisories and promptly apply patches released by Google to address known vulnerabilities.