Check Point Advisories

KDE WebKit Use-after-free Memory Corruption (CVE-2018-4200)

Check Point Reference: CPAI-2018-0422
Date Published: 7 May 2018
Severity: High
Last Updated: Sunday 22 January, 2023
Source: Project zero
Industry Reference:CVE-2018-4200
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? KDE WebKit
Vulnerability Description A memory corruption vulnerability exists in KDE WebKit. The vulnerability is due to the way WebKit handles objects in memory. 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

  1. In the IPS tab, click Protections and find the KDE WebKit Use-after-free Memory Corruption (CVE-2018-4200) 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:  KDE WebKit Use-after-free Memory Corruption (CVE-2018-4200)

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