Check Point Advisories

Mozilla Browsers JavaScript Navigator Object Memory Corruption - Ver2 (CVE-2006-3677)

Check Point Reference: CPAI-2014-1473
Date Published: 16 Apr 2014
Severity: High
Last Updated: Wednesday 16 April, 2014
Source: CVE-2006-3677
Industry Reference:CVE-2006-3677
Protection Provided by:

Security Gateway
R77, R76, R75
Who is Vulnerable?
Vulnerability Description Mozilla Firefox and Seamonkey are very popular open source web browsers from Mozilla Foundation, based on the Mozilla Suite code base. The browser is an application designed for tasks related to web browsing, such as displaying HTML pages, downloading files, rendering different media, and so on. The application implements many web standards, including JavaScript and Java applets. There exist a memory corruption vulnerability in Mozilla Foundation's family of browser products. The flaw is caused by insufficient check of user supplied data when assigning values to objects. In an attack case where code injection is not successful, the affected application will terminate abnormally. In a more sophisticated attack where code injection results is successful, the behavior of the target is entirely dependent on the intended function of the injected code. The code in such a case would execute within the security context of the current user.

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.

Security Gateway R77 / R76 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Mozilla Browsers JavaScript Navigator Object Memory Corruption - Ver2 protection using the Search tool and Edit the protection's settings.
  2. Install policy on all modules.

SmartView Tracker will log the following entries:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Mozilla Browsers JavaScript Navigator Object Memory Corruption - Ver2

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