Check Point Advisories

Mozilla Firefox UTF-8 URL Handling Stack Buffer Overflow - Improved Performance (CVE-2008-0016)

Vulnerability
Protection

Check Point Reference:	CPAI-2008-347
Date Published:	13 Dec 2009
Severity:	High
Last Updated:	Monday 23 December, 2013
Source:
Industry Reference:	CVE-2008-0016
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Firefox is an open source web browser developed by Mozilla Foundation. The application is capable of interpreting and rendering many types of Internet content, including various versions of HTML, XML, CSS (Cascade Style Sheet), JavaScript, various graphic formats, and so on. Firefox is made available for Windows, Macintosh, Unix and Linux based platforms. There exists a buffer overflow vulnerability in Mozilla Firefox. The vulnerability is due to insufficient validation of URL containing UTF-8 encoded characters. A remote attacker can exploit this vulnerability by enticing the target user to open a crafted web page. Successful exploitation would allow for arbitrary code injection and execution with the privileges of the currently logged on user. An attack targeting this vulnerability can result in the injection and execution of arbitrary code. If code execution is successful, the behavior of the target will depend on the intention of the attacker. Any injected code will be executed within the security context of the currently logged in user. In the case of an unsuccessful code execution attack, the application would terminate abnormally.

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 Mozilla Firefox UTF-8 URL Handling Stack Buffer Overflow - Improved Performance 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: Web Client Enforcement Violation.
Attack Information: Mozilla Firefox UTF-8 URL handling stack buffer overflow - Improved Performance