Check Point Advisories

Apple WebKit Use After Free (CVE-2018-4442)

Check Point Reference: CPAI-2018-1320
Date Published: 16 Mar 2020
Severity: High
Last Updated: 16 Mar 2020
Industry Reference:CVE-2018-4442
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? iOS prior to 12.1.1
tvOS prior to 12.1.1
watchOS prior to 5.1.2
Safari prior to 12.0.2
iTunes for Windows prior to 12.9.2
iCloud for Windows prior to 7.9
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 R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Apple WebKit Use After Free (CVE-2018-4442) protection using the Search tool and Edit the protection's settings.
  2. 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 Use After Free (CVE-2018-4442)

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