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OpenSSL do_ssl3_write Denial of Service (CVE-2014-0198)


Check Point Reference: CPAI-2014-1550
Date Published:
Last Updated:
Source: OpenSSL
Industry Reference(s): CVE-2014-0198
Protection Provided by: Security Gateway
  • R77
  • R76
  • R75
Who is Vulnerable?
OpenSSL Project OpenSSL prior to commit 3ef477c69f2fd3
Vulnerability Description
A denial of service vulnerability has been reported in OpenSSL. The vulnerability is due to an error in do_ssl3_write() in ssl/s3_pkt.c. A remote unauthenticated attacker could exploit this vulnerability by triggering the generation of an Alert, leading to a NULL pointer dereference and causing a denial of service condition.

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, Protection tab and select the version of your choice.

To configure the defense, select your product from the list below and follow the related protection steps.

Security Gateway R77 / R76 / R75 / R71 / R70

How Can I Protect My Network?

  1. In the IPS tab, click Protections and find the OpenSSL do_ssl3_write Denial of Service protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:

Attack Name:  SSL Enforcement Violation.
Attack Information:  OpenSSL do_ssl3_write Denial of Service