Check Point Advisories

Adobe Reader JBIG2 Parameters Memory Corruption (APSB09-07; CVE-2009-1858)

Check Point Reference: CPAI-2009-188
Date Published: 10 Jun 2009
Severity: Critical
Last Updated: Monday 01 April, 2024
Industry Reference:CVE-2009-1858
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 memory corruption vulnerability has been discovered in Adobe Reader and Acrobat. The vulnerability is due to the way Adobe Reader and Acrobat handle certain JBIG2 parameters in malformed PDF documents. 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 will detect and block attempts to transfer malformed 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 R81 / R80 / R77 / R75 / R71 / R70

  1. In the IPS tab, click Protections and find the Adobe Reader JBIG2 Parameters Memory Corruption (APSB09-07) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Adobe Reader Violation.
Attack Information:  Adobe Reader JBIG2 Parameters Memory Corruption (APSB09-07)

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