Check Point Advisories

Linux Kernel SCTP Chunk Parameter Padding Denial of Service (CVE-2014-3673)

Vulnerability
Protection

Check Point Reference:	CPAI-2015-0468
Date Published:	8 Apr 2015
Severity:	Critical
Last Updated:	Monday 15 August, 2016
Source:
Industry Reference:	CVE-2014-3673
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?	Linux Web Servers
Vulnerability Description	A denial of service vulnerability has been reported in the SCTP networking module of the Linux kernel. The vulnerability is due to an error while processing crafted chunks. A remote, unauthenticated attacker can exploit this vulnerability by sending crafted SCTP packets to a vulnerable system. A successful exploitation will result in a system crash.

Protection Overview

This protection will detect and block crafted SCTP chunks.

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 Linux Kernel SCTP Chunk Parameter Padding Denial of Service 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: ICMP Protocol Violation.
Attack Information: Linux Kernel SCTP Chunk Parameter Padding Denial of Service