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Category:   Application (File Transfer/Sharing)  >   FileZilla Vendors:
FileZilla MS-DOS Device Name and zlib Errors Let Remote Users Deny Service
SecurityTracker Alert ID:  1013513
SecurityTracker URL:
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Mar 23 2005
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 0.9.6
Description:   Two vulnerabilities were reported in FileZilla. A remote user can cause denial of service conditions.

A remote user can issue a command to access an MS-DOS device name (e.g., CON, NUL, COM1, LPT1) to cause the target FileZilla Server to freeze.

A remote user can download a file or directory listing with MODE Z (zlib) enabled to cause FileZilla to enter an infinite loop.

Impact:   A remote user can cause FileZilla to hang.
Solution:   The vendor has issued a fixed version (0.9.6), available at:

Vendor URL: (Links to External Site)
Cause:   Exception handling error, State error
Underlying OS:  Windows (Any)

Message History:   None.

 Source Message Contents

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