Check Point Advisories

OpenSSL DTLS Hello Message Denial of Service (CVE-2014-0221)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1617
Date Published:	8 Jun 2014
Severity:	High
Last Updated:	Monday 09 June, 2014
Source:	OpenSSL
Industry Reference:	CVE-2014-0221
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?	OpenSSL prior 0.9.8za, 1.0.0 before 1.0.0m and 1.0.1 before 1.0.1h
Vulnerability Description	A Denial of Service vulnerability has been reported in older versions of OpenSSL. The vulnerability is due to a DTLS recursion flaw. A remote attacker can exploit this vulnerability by sending an invalid DTLS handshake to an OpenSSL DTLS client.

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 / R75 / R71 / R70

In the IPS tab, click Protections and find the OpenSSL DTLS Hello Message 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: SSL Enforcement Violation.
Attack Information: OpenSSL DTLS Hello Message Denial of Service