Check Point Advisories

Mozilla Firefox Out of Bounds Write (CVE-2018-5146; CVE-2018-5147)

Vulnerability
Protection

Check Point Reference:	CPAI-2018-0508
Date Published:	14 May 2018
Severity:	High
Last Updated:	Monday 18 September, 2023
Source:
Industry Reference:	CVE-2018-5146 CVE-2018-5147
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Redhat Enterprise Linux Desktop 6.0 on X86 Red Hat Enterprise Linux Desktop 7.0 on X64 Redhat Enterprise Linux Server 6.0 on X64 Redhat Enterprise Linux Server 7.0 on X64 Red Hat Enterprise Linux Server Advanced mission critical Update Support (AUS) 7.4 Red Hat Enterprise Linux Server Advanced mission critical Update Support (AUS) 7.6 Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.4 Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.5 Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.6 Red Hat Enterprise Linux Server TUS 7.4 Red Hat Enterprise Linux Server Telecommunications Update Service (TUS) 7.6 Redhat Enterprise Linux Workstation 6.0 on X64 Red Hat Enterprise Linux Workstation 7.0 on X64 Debian Linux 7.0 Debian Linux 8.0 (Jessie) Debian Linux 9.0
Vulnerability Description	An out of bounds write vulnerability exists in Mozilla Firefox. Successful exploitation of this vulnerability could allow a remote attacker to obtain sensitive information.

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 Mozilla Firefox Out of Bounds Write 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: Mozilla Firefox Out of Bounds Write