CVE-2020-6474 : Exploit Details and Defense Strategies

A use-after-free vulnerability in Google Chrome prior to version 83.0.4103.61 allowed remote attackers to potentially exploit heap corruption via a crafted HTML page.

Understanding CVE-2020-6474

This CVE involves a specific vulnerability in Google Chrome that could be exploited by attackers.

What is CVE-2020-6474?

CVE-2020-6474 is a use-after-free vulnerability in the Blink component of Google Chrome before version 83.0.4103.61. This flaw could be abused by a remote attacker to trigger heap corruption through a maliciously crafted HTML page.

The Impact of CVE-2020-6474

The vulnerability could lead to heap corruption, potentially allowing attackers to execute arbitrary code or crash the application, posing a significant security risk to users.

Technical Details of CVE-2020-6474

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from improper handling of resources in the Blink component of Google Chrome, leading to a use-after-free condition that could be exploited by attackers.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: Less than 83.0.4103.61
Version Type: Custom

Exploitation Mechanism

Attackers can exploit this vulnerability by enticing a user to visit a specially crafted HTML page, triggering the use-after-free condition and potentially executing malicious code.

Mitigation and Prevention

Protecting systems from CVE-2020-6474 requires immediate action and long-term security measures.

Immediate Steps to Take

Update Google Chrome to version 83.0.4103.61 or newer to mitigate the vulnerability.
Exercise caution when visiting untrusted websites or clicking on suspicious links.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement security best practices such as using firewalls and antivirus software to enhance overall protection.
Educate users about safe browsing habits and the importance of staying vigilant against potential threats.

Patching and Updates

Ensure timely installation of security updates and patches provided by Google to address vulnerabilities like CVE-2020-6474.