Staying Safe in Times of Cyber Uncertainty
Check Point Advisories

Mozilla Firefox JIT Compiler Memory Leak (CVE-2018-12387)

Check Point Reference: CPAI-2018-1406
Date Published: 5 Jun 2020
Severity: Medium
Last Updated: Sunday 27 March, 2022
Industry Reference:CVE-2018-12387
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Firefox ESR 60.2.2 and earlier
Firefox 62.0.3. and earlier
Vulnerability Description A memory leak vulnerability exists in Mozilla Firefox JIT Compiler. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes.

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

  1. In the IPS tab, click Protections and find the Mozilla Firefox JIT Compiler Memory Leak (CVE-2018-12387) 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:  Mozilla Firefox JIT Compiler Memory Leak (CVE-2018-12387)

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