CVE-2020-6576 Explained : Impact and Mitigation

A use after free vulnerability in offscreen canvas in Google Chrome before version 85.0.4183.102 could allow a remote attacker to exploit heap corruption via a specially crafted HTML page.

Understanding CVE-2020-6576

This CVE record details a specific vulnerability in Google Chrome that could lead to heap corruption.

What is CVE-2020-6576?

CVE-2020-6576 is a use after free vulnerability in offscreen canvas in Google Chrome versions prior to 85.0.4183.102.

The Impact of CVE-2020-6576

The vulnerability could be exploited by a remote attacker to potentially cause heap corruption through a malicious HTML page.

Technical Details of CVE-2020-6576

This section provides more technical insights into the CVE-2020-6576 vulnerability.

Vulnerability Description

The vulnerability arises from improper handling of offscreen canvas in Google Chrome, leading to a use after free scenario.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: Less than 85.0.4183.102

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker through a crafted HTML page to trigger heap corruption.

Mitigation and Prevention

Protecting systems from CVE-2020-6576 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Google Chrome to version 85.0.4183.102 or later to mitigate the vulnerability.
Avoid visiting untrusted websites or clicking on suspicious links.

Long-Term Security Practices

Regularly update software and applications to patch known vulnerabilities.
Implement strong security measures such as firewalls and antivirus software.

Patching and Updates

Ensure timely installation of security patches and updates provided by Google to address CVE-2020-6576.