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Insecure Library Loading

Secunia Advisory SA13292

ncpfs NWDSCreateContextHandleMnt Buffer Overflow Vulnerability
Secunia Advisory SA13292
Secunia VIM 4.0 - Free Trial
Release Date 2004-11-30
Last Update 2004-12-07
   
Popularity 9,735 views
Comments 0 comments

Criticality level Not criticalNot critical
Impact DoS
Where Local system
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:
ncpfs 2.x

Secunia CVSS Score This information is available to Secunia VIM Customers
CVE Reference(s) CVE-2004-1079 CVSS score available to Secunia VIM customers
  

Description

Karol Wiesek has reported a potential vulnerability in ncpfs, which can be exploited by malicious, local users.

The problem is caused due to a boundary error within the "NWDSCreateContextHandleMnt()" function when handling tree names. This can be exploited via ncpmap or ncplogin (both utilities installed setuid "root" on some Linux distributions) to cause a buffer overflow by passing an overly long argument (about 330 bytes) as a tree name to the "-T" command line option.

Successful exploitation causes an access violation. The issue is currently not believed to be exploitable for code execution, but this cannot be ruled out completely.

The issue has been reported in version 2.2.4. Other versions may also be affected.


Solution
Update to version 2.2.5.
Further details available to Secunia VIM customers

Provided and/or discovered by
Karol Wiesek

Changelog
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: ncpfs NWDSCreateContextHandleMnt Buffer Overflow Vulnerability
 
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