Check Point Advisories

Apple WebKit AbstractValue Set Use After Free (CVE-2018-4443)

Vulnerability
Protection

Check Point Reference:	CPAI-2018-2148
Date Published:	17 Nov 2022
Severity:	High
Last Updated:	Thursday 17 November, 2022
Source:
Industry Reference:	CVE-2018-4443
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Apple Safari prior to 12.0.2 Apple iPhone OS prior to 12.1.1 Apple tvOS prior to 12.1.1 Apple watchOS prior to 5.1.2 Apple iCloud prior to 7.9 Apple iTunes prior to 12.9.2
Vulnerability Description	A use-after-free vulnerability exists in Apple WebKit. 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 Apple WebKit AbstractValue Set Use After Free (CVE-2018-4443) 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: Apple WebKit AbstractValue Set Use After Free (CVE-2018-4443)