Check Point Advisories

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

Check Point Reference: CPAI-2012-231
Date Published: 14 May 2012
Severity: Critical
Last Updated: Friday 22 November, 2024
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 DetailsThe vulnerability is due to the mishandling of the parameter string Caller Name by the application. A remote attacker can exploit this issue by sending a specially crafted NFS lockd request to a vulnerable server. Successful exploitation would allow an attacker to execute arbitrary code with root privileges.

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

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

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

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