Check Point Advisories

Adobe Acrobat Reader DC Path Join Out of Bounds Read (APSB21-37: CVE-2021-28554)

Vulnerability
Protection

Check Point Reference:	CPAI-2021-0370
Date Published:	8 Jun 2021
Severity:	High
Last Updated:	Tuesday 08 June, 2021
Source:	Adobe APSB21-37
Industry Reference:	CVE-2021-28554
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Adobe Acrobat Reader DC 21.001.20155 and prior
Vulnerability Description	An out of bounds read vulnerability has been reported in Adobe Acrobat Reader DC. The vulnerability is due to improper handling of relative paths in calls to the app.openDoc JavaScript function.
Update/Patch Avaliable	Apply patches from: APSB21-37

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 R81 / R80 / R77 / R75

In the IPS tab, click Protections and find the Adobe Acrobat Reader DC Path Join Out of Bounds Read (APSB21-37: CVE-2021-28554) 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 Acrobat Reader DC Path Join Out of Bounds Read (APSB21-37: CVE-2021-28554)