Check Point Advisories

Mozilla Firefox ClearTextRun Function Memory Corruption (CVE-2009-1313)

Check Point Reference: CPAI-2009-386
Date Published: 23 Mar 2010
Severity: High
Last Updated: Tuesday 23 March, 2010
Source:
Industry Reference:CVE-2009-1313
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description Mozilla Firefox is a web browser developed by Mozilla Foundation. The browser is capable of interpreting and rendering many types of content published on the Internet, including various versions of HTML, XML, XUL, JavaScript, various graphics formats, and so on. The browser runs on the Windows, Macintosh, Unix and Linux based platforms. A memory corruption exists vulnerability in Mozilla Firefox. This flaw is due to an improper handling of script that manipulates text objects in HTML document. A remote attacker can exploit this vulnerability by persuading the target user to open a malicious webpage. In case of an attack where code injection is not successful, Firefox may terminate abnormally. In case of an attack where code injection and execution is successful, the behavior of the target will depend on the intended purpose of the injected code. Any injected code will be executed within the security context of the currently logged in 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, click on Protection tab and select the version of your choice.

Security Gateway R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Mozilla Firefox ClearTextRun Function Memory Corruption protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Client Enforcement Violation.
Attack Information:  Mozilla Firefox ClearTextRun function memory corruption

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