Check Point Advisories

Adobe Flash Player ActionScript 3 Movie Canvas Memory Corruption (APSB11-21; CVE-2011-2135)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-388
Date Published:	16 Aug 2011
Severity:	Critical
Last Updated:	Tuesday 16 August, 2011
Source:
Industry Reference:	CVE-2011-2135
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	The vulnerability is due an error in the way the application performs boundary checks on the ActionScript tags while loading objects to Movie Canvas in SWF files. A remote attacker could exploit this vulnerability by enticing an unsuspecting victim to open a web page containing malicious SWF files.

Protection Overview

This protection will detect and block an attempt 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 / R71 / R70

In the IPS tab, click Protections and find the Adobe Flash Player ActionScript 3 Movie Canvas Memory Corruption (APSB11-21) 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: Adobe Products Violation.
Attack Information: Adobe Flash Player actionscript 3 movie canvas memory corruption (APSB11-21)