Check Point Advisories

Google Chrome Use After Free (CVE-2021-21193)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-1519
Date Published:	28 Dec 2022
Severity:	High
Last Updated:	Wednesday 28 December, 2022
Source:
Industry Reference:	CVE-2021-21193
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Google Chrome prior to 89.0.4389.90
Vulnerability Description	A use after free vulnerability exists in Google Chrome. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system.

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 Use After Free (CVE-2021-21193) 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 Use After Free (CVE-2021-21193)