Check Point Advisories

Mozilla Firefox OBJECT mChannel Use After Free (CVE-2011-0065)

Check Point Reference: CPAI-2011-475
Date Published: 1 Nov 2011
Severity: High
Last Updated: Tuesday 01 November, 2011
Source:
Industry Reference:CVE-2011-0065
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description A use-after-free vulnerability has been reported in Mozilla Firefox. The vulnerability is due to a specific method call on an object with an unassigned mChannel. A remote attacker may exploit this vulnerability by enticing users to open a specially crafted web-page using an affected version of Firefox. Successful exploitation would allow an attacker to execute arbitrary code in the user's security context.

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 OBJECT mChannel Use After Free 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 object mChannel use after free

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