Check Point Advisories

Adobe Reader PDF Font Data Length Heap Corruption (APSB11-03; CVE-2011-0594)

Vulnerability
Protection

Check Point Reference:	CPAI-2011-066
Date Published:	8 Mar 2011
Severity:	High
Last Updated:	Tuesday 08 March, 2011
Source:
Industry Reference:	CVE-2011-0594
Protection Provided by:	Security Gateway R81, R80, R77, R75, R71, R70
Who is Vulnerable?
Vulnerability Description	Portable Document Format (PDF) is an open file format created by Adobe Systems. It is used for representing two-dimensional documents in a device and resolution independent fixed-layout document format. A heap corruption vulnerability has been reported in Adobe Reader and Acrobat. The vulnerability is due to the way Adobe Reader and Acrobat parse a PDF file containing malformed font data. A remote attacker could trigger this issue via a specially crafted PDF file. Successful exploitation will create a denial of service condition, causing the application to become non-responsive, and may allow execution of arbitrary code once a malicious PDF file is loaded on a vulnerable system.

Protection Overview

This protection detects and blocks the transferring of specially crafted PDF files over HTTP.

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 Reader PDF Font Data Length Heap Corruption (APSB11-03) 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 Reader Violation.
Attack Information: Adobe Reader PDF font data length heap corruption (APSB11-03)