Check Point Advisories

Apple Safari Regular Expression Heap Buffer Overflow (CVE-2007-3944)

Vulnerability
Protection

Check Point Reference:	CPAI-2007-302
Date Published:	21 Feb 2010
Severity:	High
Last Updated:	Sunday 21 February, 2010
Source:
Industry Reference:	CVE-2007-3944
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	There exists a buffer overflow vulnerability in Apple Safari web browser. The vulnerability is due to lack of boundary protection while processing Javascript Regular Expressions included in a web page. A remote attacker can exploit this vulnerability by enticing the target user to open a malicious web page, potentially causing arbitrary code to be injected and executed within the logged-in user privileges. In an attack case where code injection is not successful, the vulnerable application using the affected application will terminate immediately. In a more sophisticated attack where code injection 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 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

In the IPS tab, click Protections and find the Apple Safari Regular Expression Heap Buffer 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: Apple Safari regular expression heap buffer overflow