Check Point Advisories

Linux Kernel Buffer Overflow (CVE-2023-52440)

Vulnerability
Protection

Check Point Reference:	CPAI-2023-1664
Date Published:	7 May 2024
Severity:	High
Last Updated:	Tuesday 07 May, 2024
Source:
Industry Reference:	CVE-2023-52440
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Linux Kernel 5.17.0 and later, prior to 6.1.52 Linux Kernel 6.2.0 and later, prior to 6.4.15 Linux Kernel 6.5.0 and later, prior to 6.5.2
Vulnerability Description	A buffer overflow vulnerability exists in Linux Kernel. Successfully exploiting the vulnerability could result in remote code execution within the kernel space of the target server.

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 Buffer Overflow (CVE-2023-52440) 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 Buffer Overflow (CVE-2023-52440)