CVE-2020-15971 Explained : Impact and Mitigation

A use-after-free vulnerability in Google Chrome before version 86.0.4240.75 could allow a remote attacker to escape the sandbox via a crafted HTML page.

Understanding CVE-2020-15971

This CVE involves a specific vulnerability in Google Chrome that could potentially lead to a sandbox escape.

What is CVE-2020-15971?

CVE-2020-15971 is a use-after-free vulnerability in the printing component of Google Chrome prior to version 86.0.4240.75. This flaw could be exploited by a remote attacker who compromised the renderer process, enabling them to execute arbitrary code and escape the browser's sandbox environment.

The Impact of CVE-2020-15971

The impact of this vulnerability is significant as it could allow an attacker to execute malicious code outside the confines of the browser's security mechanisms, potentially leading to further system compromise.

Technical Details of CVE-2020-15971

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The vulnerability arises from a use-after-free issue in the printing functionality of Google Chrome, which could be triggered by an attacker to gain unauthorized access.

Affected Systems and Versions

Product: Chrome
Vendor: Google
Versions Affected: < 86.0.4240.75 (unspecified/custom)

Exploitation Mechanism

The vulnerability could be exploited by a remote attacker who has already compromised the renderer process, using a specially crafted HTML page to trigger the use-after-free condition and potentially execute arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2020-15971 requires immediate action and long-term security practices.

Immediate Steps to Take

Update Google Chrome to version 86.0.4240.75 or later to mitigate the vulnerability.
Exercise caution when visiting unknown or untrusted websites to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update software and applications to ensure the latest security patches are applied.
Implement robust security measures such as endpoint protection and network firewalls to prevent and detect potential threats.

Patching and Updates

Stay informed about security advisories and updates from Google Chrome to address any future vulnerabilities promptly.