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Insecure Library Loading

Secunia Advisory SA23027

Novell Client NWSPOOL.DLL Buffer Overflow Vulnerabilities
Secunia Advisory SA23027
Secunia VIM 4.0 - Free Trial
Release Date 2006-11-21
Last Update 2007-06-11
   
Popularity 15,253 views
Comments 0 comments

Criticality level Moderately criticalModerately critical
Impact DoS
System access
Where From local network
Authentication level This information is available to Secunia VIM customers
   
Report reliability This information is available to Secunia VIM customers
Solution Status Vendor Patch
   
Systems affected This information is available to Secunia VIM customers
Approve distribution This information is available to Secunia VIM customers
   
Software:
Novell Client for Windows NT/2000/XP 4.x

Secunia CVSS Score This information is available to Secunia VIM Customers
CVE Reference(s) CVE-2006-5854 CVSS score available to Secunia VIM customers
CVE-2006-6114 CVSS score available to Secunia VIM customers
  

Description

Some vulnerabilities have been reported in Novell Client, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerabilities exist due to boundary errors within the Spooler service in the functions "OpenPrinter()" and "EnumPrinters()" in NWSPOOL.DLL. These can be exploited to cause buffer overflows via overly large arguments (458 or more characters as the first argument to "OpenPrinter()" or 524 or more characters, followed by an exclamation point, as the second argument to "EnumPrinters()") in RPC requests and may allow execution of arbitrary code.

The vulnerabilities are reported in version 4.91 SP2. Other versions may also be affected.


Solution
Apply patch.
Further details available to Secunia VIM customers

Provided and/or discovered by
Discovered by an anonymous person and reported by Tipping Point and the Zero Day Initiative.

Changelog
Further details available to Secunia VIM customers

Original Advisory
Novell:
https://secure-support.novell.com/KanisaPlatform/Publishing/583/3125538_f.SAL_Public.html
http://support.novell.com/cgi-bin/search/searchtid.cgi?/2974765.htm

ZDI:
http://www.zerodayinitiative.com/advisories/ZDI-06-043.html

Other references
Further details available to Secunia VIM customers

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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