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Insecure Library Loading
Moderately critical

Novell Netware XNFS.NLM "xdrDecodeString()" Buffer Overflow Vulnerability

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Release Date:  2011-02-24    Last Update:  2011-03-01    Views:  2,493

Secunia Advisory SA43431

Where:

From local network

Impact:

System access

Solution Status:

Vendor Patch

Operating System:

CVE Reference(s):

Description


A vulnerability has been reported in Novell Netware, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is caused due to a boundary error within the "xdrDecodeString()" function in the XNFS.NLM component when handling a NFS RPC request. This can be exploited to cause a stack-based buffer overflow by sending a specially crafted RPC request to port 1234/UDP.

Successful exploitation may allow execution of arbitrary code.

The vulnerability is reported in all 6.5 versions.


Solution:
Apply patch.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Francis Provencher, Protek Research Labs via ZDI.

Original Advisory:
Novell:
http://download.novell.com/Download?buildid=1z3z-OsVCiE~

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-11-090/

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Novell Netware XNFS.NLM "xdrDecodeString()" Buffer Overflow Vulnerability

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