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Insecure Library Loading
Moderately critical

Novell Client NWSPOOL.DLL Buffer Overflow Vulnerabilities

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Release Date:  2007-08-29    Last Update:  2007-12-03    Views:  14,318

Secunia Advisory SA26374

Where:

From local network

Impact:

DoS, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Secunia Research has discovered multiple vulnerabilities in Novell Client, which can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.

The vulnerabilities are caused due to boundary errors within NWSPOOL.DLL when processing arguments passed to certain RPC requests (e.g. RpcAddPrinterDriver and RpcGetPrinterDriverDirectory). These can be exploited to cause stack-based buffer overflows via RPC requests with specially crafted, overly long arguments.

Successful exploitation allows crashing the service and execution of arbitrary code.

The vulnerabilities are confirmed in Novell Client v4.91 SP4 for Windows 2000/XP/2003. Other versions may also be affected.


Solution:
Apply patch.

Further details available to Secunia VIM customers

Provided and/or discovered by:
JJ Reyes, Secunia Research.

Original Advisory:
Secunia Research:
http://secunia.com/secunia_research/2007-57/

Novell:
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5007240.html

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 Client NWSPOOL.DLL Buffer Overflow Vulnerabilities

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