Check Point Advisories

Samba smbd read_nttrans_ea_list Infinite Allocation Loop Denial of Service (CVE-2013-4124)

Vulnerability
Protection

Check Point Reference:	CPAI-2013-2892
Date Published:	27 Aug 2013
Severity:	High
Last Updated:	Sunday 14 February, 2016
Source:
Industry Reference:	CVE-2013-4124
Protection Provided by:	Security Gateway R81, R80, R77, R75
Who is Vulnerable?
Vulnerability Description	A memory exhaustion vulnerability has been reported in Samba server. The vulnerability is due to an infinite loop allocating memory that occurs when processing specially crafted packets. A remote authenticated or guest attacker could exploit this vulnerability by sending specially crafted requests to the target server. Successful exploitation of this vulnerability results in a denial of service condition.

Protection Overview

This protection will detect and block 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 Samba smbd read_nttrans_ea_list Infinite Allocation Loop 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: MS-RPC Enforcement Violation.
Attack Information: Samba smbd read_nttrans_ea_list Infinite Allocation Loop denial of service