Check Point Advisories

Real Networks NetZip Classic Buffer Overflow

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0228
Date Published:	16 Mar 2017
Severity:	High
Last Updated:	Thursday 16 March, 2017
Source:
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Real Networks Netzip Classic 7.5.1 86
Vulnerability Description	A buffer overflow vulnerability exists in Real Networks Netzip Classic. The vulnerability is due to improper boundary check error while handling ZIP files. A remote attacker can exploit this vulnerability to execute an arbitrary code on the victim's computer.

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

In the IPS tab, click Protections and find the Real Networks NetZip Classic Buffer Overflow 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: Web Client Enforcement Violation.
Attack Information: Real Networks NetZip Classic Buffer Overflow