Check Point Advisories

Google Chrome Browser Use-After-Free (CVE-2021-37973)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1116
Date Published:	30 Mar 2022
Severity:	Critical
Last Updated:	Wednesday 30 March, 2022
Source:
Industry Reference:	CVE-2021-37973
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Chromium Browser prior to 94.0.4606.61
Vulnerability Description	A use-after-free vulnerability exists in Google Chrome Browser, Successful exploitation of this vulnerability could allow a remote attacker to potentially perform a sandbox escape via a crafted HTML page.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Google Chrome Browser Use-After-Free (CVE-2021-37973) protection using the Search tool and Edit the protection's settings.
Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name: Web Client Enforcement Violation.
Attack Information: Google Chrome Browser Use-After-Free (CVE-2021-37973)