Check Point Advisories

OpenBSD OpenSSH Denial of Service (CVE-2016-8858)

Vulnerability
Protection

Check Point Reference:	CPAI-2017-0307
Date Published:	23 Apr 2017
Severity:	High
Last Updated:	Monday 28 July, 2025
Source:	OpenSSH
Industry Reference:	CVE-2016-8858
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	OpenBSD OpenSSH 6.8 OpenBSD OpenSSH 6.9 OpenBSD OpenSSH 7.0 OpenBSD OpenSSH 7.1 OpenBSD OpenSSH 7.2 p1 OpenBSD OpenSSH 7.3
Vulnerability Description	A denial-of-service vulnerability exists in OpenBSD OpenSSH. Successful exploitation of this vulnerability would allow a remote attacker to create a denial of service condition on the affected system.

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 OpenBSD OpenSSH Denial of Service (CVE-2016-8858) 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 Server Enforcement Violation.
Attack Information: OpenBSD OpenSSH Denial of Service (CVE-2016-8858)