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Category:   Application (File Transfer/Sharing)  >   KTorrent Vendors:   ktorrent.org
KTorrent Bugs Let Remote Users Overwrite Files and Deny Service
SecurityTracker Alert ID:  1017747
SecurityTracker URL:  http://securitytracker.com/id/1017747
CVE Reference:   CVE-2007-1384, CVE-2007-1385   (Links to External Site)
Date:  Mar 13 2007
Impact:   Denial of service via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 2.1.2
Description:   A vulnerability was reported in KTorrent. A remote user can cause denial of service conditions. A remote user can overwrite files on the target system.

The software does not properly validate user-supplied input. A remote user can supply a specially crafted torrent filename containing '..' directory traversal characters to overwrite files on target system. The flaw resides in 'torrent.cpp'.

A remote user can send a specially crafted idx value to trigger a flaw in 'chunkcounter.cpp' and cause the target service to crash.

Bryan Burns of Juniper Networks discovered these vulnerabilities.

Impact:   A remote user can cause denial of service conditions.

A remote user can overwrite files on the target system.

Solution:   The vendor has issued a fixed version (2.1.2), available at:

http://ktorrent.org/index.php?page=downloads

Vendor URL:  ktorrent.org/forum/viewtopic.php?t=1401 (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any)

Message History:   None.


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