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

SECUNIA ADVISORY ID:
SA43431

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/43431/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=43431

RELEASE DATE:
2011-03-13

DISCUSS ADVISORY:
http://secunia.com/advisories/43431/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/43431/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=43431

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

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 in Customer Area:
http://secunia.com/products/corporate/EVM/

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/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
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