CVE-2021-30586 Explained : Impact and Mitigation

A vulnerability labeled as CVE-2021-30586 was discovered in Chrome prior to version 92.0.4515.107. This vulnerability could allow an attacker to exploit heap corruption through a crafted HTML page if a user is convinced to install a malicious extension.

Understanding CVE-2021-30586

In this section, we will dive into the details of CVE-2021-30586.

What is CVE-2021-30586?

CVE-2021-30586 is a 'Use after free' vulnerability found in the dialog box handling component of Chrome running on Windows.

The Impact of CVE-2021-30586

The vulnerability in Google Chrome prior to version 92.0.4515.107 could lead to heap corruption if an attacker tricks a user into installing a malicious extension.

Technical Details of CVE-2021-30586

Let's explore the technical aspects of CVE-2021-30586.

Vulnerability Description

The vulnerability allows an attacker to potentially exploit heap corruption by manipulating dialog box handling in Windows.

Affected Systems and Versions

Chrome versions less than 92.0.4515.107 on Windows are affected by CVE-2021-30586.

Exploitation Mechanism

An attacker can exploit this vulnerability by convincing a user to install a malicious extension, thereby triggering heap corruption.

Mitigation and Prevention

Here we discuss how to mitigate the risks associated with CVE-2021-30586.

Immediate Steps to Take

Users should update Chrome to version 92.0.4515.107 or higher to prevent exploitation of this vulnerability.

Long-Term Security Practices

Regularly update Chrome and be cautious when installing extensions or downloading content from untrusted sources.

Patching and Updates

Google released patches to address CVE-2021-30586. It is crucial to apply these patches promptly to secure systems.