Check Point Advisories

Mozilla Products nsCSSValue Array Index Integer Overflow (CVE-2010-2752)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-422
Date Published:	3 Oct 2010
Severity:	High
Last Updated:	Sunday 18 January, 2015
Source:
Industry Reference:	CVE-2010-2752
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Mozilla Firefox and Seamonkey are popular open source web browsers from Mozilla Foundation. An integer overflow vulnerability exists in Mozilla products including Firefox, Thunderbird, and SeaMonkey. The vulnerability is due to a 16-bit integer value used in allocating the size of the array class to store CSS values that could overflow, resulting in too small a memory buffer being created. A remote attacker could exploit this issue by enticing target users to visit a crafted web page. Successful exploitation would result in arbitrary code execution in the context of the logged on 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

In the IPS tab, click Protections and find the Mozilla Products nsCSSValue Array Index Integer Overflow 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 Products nsCSSValue array index integer overflow