Check Point Advisories

OpenSSL AES-NI Integer Underflow (CVE-2012-2686)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-1649
Date Published:	4 Apr 2013
Severity:	Critical
Last Updated:	Tuesday 20 February, 2018
Source:
Industry Reference:	CVE-2012-2686
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	An integer underflow vulnerability has been reported in OpenSSL. The flaw exists in the OpenSSL on platforms that support the AES-NI instruction set. A remote attacker can exploit these vulnerabilities to cause a denial-of-service condition on applications that use the vulnerable version of the OpenSSL library.

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 AES-NI Integer Underflow 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 AES-NI Integer Underflow