Check Point Advisories

PHP dns_get_record Out of Bounds Read (CVE-2019-9022)

Vulnerability
Protection

Check Point Reference:	CPAI-2019-1555
Date Published:	26 Nov 2019
Severity:	Medium
Last Updated:	Tuesday 26 November, 2019
Source:
Industry Reference:	CVE-2019-9022
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	PHP Group PHP 7.1.x before 7.1.26 PHP Group PHP 7.2.x before 7.2.14 PHP Group PHP 7.3.x before 7.3.2
Vulnerability Description	An out of bounds read vulnerability exists in PHP dns_get_record. The vulnerability is due to improper handling of malformed DNS responses. Successful exploitation could lead to information disclosure.

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 R80 / R77 / R75

In the IPS tab, click Protections and find the PHP dns_get_record Out of Bounds Read (CVE-2019-9022) 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 Server Enforcement Violation.
Attack Information: PHP dns_get_record Out of Bounds Read (CVE-2019-9022)