Check Point Advisories

OpenSSL DTLS Handshake Double Free (CVE-2014-3505)

Vulnerability
Protection

Check Point Reference:	CPAI-2014-1857
Date Published:	30 Sep 2014
Severity:	High
Last Updated:	Sunday 19 October, 2014
Source:	OpenSSL
Industry Reference:	CVE-2014-3505
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	OpenSSL Project OpenSSL prior to 1.0.1i
Vulnerability Description	A denial of service vulnerability exists in OpenSSL. The vulnerability is due to a double free error during reassembly of the fragmented DTLS handshake. A remote, unauthenticated attacker could exploit this vulnerability by sending specially crafted message to a target.

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

In the IPS tab, click Protections and find the OpenSSL DTLS Handshake Double Free 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: OpenSSL Enforcement Violation.
Attack Information: OpenSSL DTLS Handshake Double Free