Check Point Advisories

ISC BIND DNS64 and RPZ Query Processing Denial of Service (CVE-2017-3135)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0448
Date Published:	28 May 2017
Severity:	Medium
Last Updated:	Monday 22 January, 2018
Source:	ISC AA-01453
Industry Reference:	CVE-2017-3135
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	ISC BIND 9.10.0 to 9.10.4-P5 ISC BIND 9.10.5b1 ISC BIND 9.11.0 to 9.11.0-P2 ISC BIND 9.11.1b1 ISC BIND 9.8.8 ISC BIND 9.9.10b1 ISC BIND 9.9.3-S1 to 9.9.9-S7
Vulnerability Description	A denial-of-service vulnerability exists in ISC BIND. The vulnerability is due to a defect that can cause the named service to exit with an assertion failure or crash due to a NULL pointer dereference while processing a query and running a specific configuration. A remote, unauthenticated attacker could exploit this vulnerability by sending a query to an affected server running the affected configuration.

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 ISC BIND DNS64 and RPZ Query Processing Denial of Service 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: DNS Enforcement Violation.
Attack Information: ISC BIND DNS64 and RPZ Query Processing Denial of Service