Check Point Advisories

GNU Libextractor ZIP File Comment Out-of-Bounds Read (CVE-2018-16430)

Check Point Reference: CPAI-2019-0288
Date Published: 17 Feb 2019
Severity: High
Last Updated: 21 Jan 2020
Industry Reference:CVE-2018-16430
Protection Provided by:

Security Gateway
R80, R77, R75

Who is Vulnerable? Libextractor
Vulnerability Description An out-of-bounds read vulnerability exists in Libextractor. The vulnerability is due to improper handling of long File Comment fields within ZIP files. Successful exploitation of this vulnerability could lead to denial-of-service conditions or disclosure of sensitive information.

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 GNU Libextractor ZIP File Comment Out-of-Bounds Read 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:  Content Protection Violation.
Attack Information:  GNU Libextractor ZIP File Comment Out-of-Bounds Read

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