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Check Point Advisories

Adobe Acrobat and Reader Use After Free (APSB17-24: CVE-2017-11256)

Check Point Reference: CPAI-2017-0665
Date Published: 8 Aug 2017
Severity: Critical
Last Updated: 16 Oct 2017
Source: Adobe APSB17-24
Industry Reference:CVE-2017-11256
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Adobe Acrobat DC Continuous for Windows 2017.009.20058
Adobe Acrobat DC Continuous for Macintosh 2017.009.20058
Adobe Acrobat Reader DC Continuous for Windows 2017.009.20058
Adobe Acrobat Reader DC Continuous for Macintosh 2017.009.20058
Adobe Acrobat DC Classic for Windows 2015.006.30306
Adobe Acrobat DC Classic for Macintosh 2015.006.30306
Adobe Acrobat Reader DC Classic for Windows 2015.006.30306
Adobe Acrobat Reader DC Classic for Macintosh 2015.006.30306
Adobe Acrobat XI Desktop for Windows 11.0.20
Adobe Acrobat XI Desktop for Macintosh 11.0.20
Adobe Acrobat Reader XI Desktop for Windows 11.0.20
Adobe Acrobat Reader XI Desktop for Macintosh 11.0.20
Vulnerability Description A use after free vulnerability exists in Adobe Acrobat and Reader. The vulnerability is due to how Adobe processes XFA layout. A remote attacker may exploit this vulnerability by enticing a target user to open a specially crafted PDF file with Adobe Reader.
Update/Patch AvaliableApply patches from: APSB17-24

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 Acrobat and Reader Use After Free (APSB17-24: CVE-2017-11256) 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 Acrobat and Reader Use After Free (APSB17-24: CVE-2017-11256)

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