We need to solve vulnerability CVE-2011-4191
"Stack-based buffer overflow in the xdrDecodeString function in XNFS.NLM in Novell NetWare 6.5 SP8 allows remote attackers to execute arbitrary code or cause a denial of service (abend or NFS outage) via long packets."
We don't know version of XNFS.NLM in this CVE.
Going to patch description (http://download.novell.com/Download?buildid=Cfw1tDezgbw~). No info about vulnerable XNFS.NLM version. No info about version of secure XNFS.NLM. Some instruction how to replace vulnerable NLM to new one.
So, question: how to detect that XNFS.NLM is already patched or not?
Thank you for your answers!