Check Point Advisories

Linux Kernel NULL Pointer Dereference (CVE-2023-3866)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-0746
Date Published:	5 May 2024
Severity:	High
Last Updated:	Sunday 05 May, 2024
Source:
Industry Reference:	CVE-2023-3866
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Linux Kernel prior to 5.15.61 Linux Kernel prior to 5.18.18 Linux Kernel prior to 5.19.2
Vulnerability Description	A null pointer dereference vulnerability exists in Linux Kernel. Successful exploitation of the vulnerability can result in denial of service.

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 Linux Kernel NULL Pointer Dereference (CVE-2023-3866) 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: Content Protection Violation.
Attack Information: Linux Kernel NULL Pointer Dereference (CVE-2023-3866)