Check Point Advisories

ISC BIND openpgpkey_61.c Denial of Service (CVE-2015-5986)

Check Point Reference: CPAI-2015-1177
Date Published: 7 Oct 2015
Severity: High
Last Updated: 15 Aug 2017
Source: ISC AA-01291
Industry Reference:CVE-2015-5986
Protection Provided by:

Security Gateway
R80, R77, R76, R75

Who is Vulnerable? ISC BIND 9.9.7 through 9.9.7-P2
ISC BIND 9.10.2 through 9.10.2-P3
Vulnerability Description A denial-of-service vulnerability exists in ISC BIND. The vulnerability is due to an incorrect boundary check, leading to a REQUIRE assertion failure in openpgpkey_61.c. A remote, unauthenticated attacker can exploit this vulnerability by sending crafted queries under certain circumstances.

Protection Overview

This protection will detect and block 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 / R76 / R75

  1. In the IPS tab, click Protections and find the ISC BIND openpgpkey_61.c Denial of Service protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

This protection's log will contain the following information:

Attack Name:  DNS Enforcement Violation.
Attack Information:  ISC BIND openpgpkey_61.c Denial of Service

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