Check Point Advisories

Adobe Reader Out of Bounds Memory Access (APSB16-26: CVE-2016-4191)

Check Point Reference: CPAI-2016-0627
Date Published: 20 Jul 2016
Severity: Critical
Last Updated: Thursday 21 July, 2016
Source: Adobe APSB16-26
Industry Reference:CVE-2016-4191
Protection Provided by:

Security Gateway
R81, R80, R77, R75

Who is Vulnerable? Acrobat DC 15.016.20045 and earlier
Acrobat Reader DC 15.016.20045 and earlier
Acrobat XI 11.0.16 and earlier
Reader XI 11.0.16 and earlier
Vulnerability Description This vulnerability is an instance of a memory corruption vulnerability. In particular, the vulnerability is caused by a crafted PDF file which causes an out of bounds memory access, which can trigger an access violation exception. Attackers can exploit the vulnerability by using the out of bounds access for unintended reads, writes or frees – potentially leading to code corruption, control-flow hijack, or information leak attack.
Update/Patch AvaliableApply patches from: APSB16-26

Protection Overview

This protection detects 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

  1. In the IPS tab, click Protections and find the Adobe Reader Out of Bounds Memory Access (APSB16-26: CVE-2016-4191) 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 Out of Bounds Memory Access (APSB16-26: CVE-2016-4191)

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