Check Point Advisories

Novell Netware XNFS.NLM Heap Buffer Overflow (CVE-2011-4191)

Vulnerability
Protection

Check Point Reference:	CPAI-2012-108
Date Published:	26 Mar 2012
Severity:	Critical
Last Updated:	Sunday 16 February, 2025
Source:	CVE-2011-4191
Protection Provided by:	Security Gateway R75
Who is Vulnerable?	Novell Netware 6.5 SP8 and prior
Vulnerability Description	A heap buffer overflow vulnerability has been reported in Novell Netware.
Vulnerability Details	The vulnerability is due to an insufficient boundary check in a certain function while handling malformed RPC calls. A remote attacker may exploit this vulnerability by sending specially crafted NFS requests to an affected server. Successful exploitation could allow an attacker to execute arbitrary code on an affected system.

Protection Overview

This protection will detect and block attempts to exploit this vulnerability.

In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.

Security Gateway R75 / R71 / R70

In the IPS tab, click Protections and find the Novell Netware XNFS.NLM Heap Buffer Overflow protection using the Search tool and Edit the protection's settings.
Install policy on all modules.

SmartView Tracker will log the following entries:
Attack Name: SUN-RPC Enforcement Protection
Attack Information: Novell Netware XNFS.NLM Heap Buffer Overflow