Check Point Advisories

Apple Safari Right-to-Left Text Rendering Use After Free Code Execution (CVE-2010-0049)

Vulnerability
Protection

Check Point Reference:	CPAI-2010-375
Date Published:	13 May 2010
Severity:	High
Last Updated:	Thursday 13 May, 2010
Source:
Industry Reference:	CVE-2010-0049
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	Safari is a web browsing application developed by Apple. The browser is capable of processing HTML, images, scripting languages, and various other popular Internet specifications. Safari is the default browser included with Mac OS X operating system. A memory corruption vulnerability has been reported in Apple Safari. The vulnerability is due to a use-after-free error when handling HTML elements containing right-to-left displayed text. A remote attacker may exploit this issue to execute arbitrary code on the target machine by enticing a user into opening a specially crafted HTML document. Successful exploitation of this vulnerability may cause the application to terminate abnormally and allow execution of arbitrary code on the affected system.

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 Right-to-Left Text Rendering Use After Free Code Execution 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 Right-to-Left text rendering use after free code execution