Title: FileZilla Server Null Pointer Dereference Multiple Denial of Service Vulnerabilities
Severity: MODERATE
Description:
FileZilla server is an FTP Server available for Microsoft Windows.
FileZilla is prone to multiple denial-of-service vulnerabilities because the application fails to handle exceptional conditions. Specifically, a NULL-pointer deference error occurs when malformed arguments are passed to the 'LIST', 'NLST', and 'NLST -al' commands.
An attacker can exploit these issues to crash the affected application, denying service to legitimate users.
Versions prior to 0.9.22 are vulnerable to these issues.
Affected Products:
- FileZilla FileZilla Server 0.7.0
- FileZilla FileZilla Server 0.7.1
- FileZilla FileZilla Server 0.8.1
- FileZilla FileZilla Server 0.8.2
- FileZilla FileZilla Server 0.8.3
- FileZilla FileZilla Server 0.8.4
- FileZilla FileZilla Server 0.8.5
- FileZilla FileZilla Server 0.8.6a
- FileZilla FileZilla Server 0.8.7
- FileZilla FileZilla Server 0.8.8
- FileZilla FileZilla Server 0.8.9
- FileZilla FileZilla Server 0.9.0
- FileZilla FileZilla Server 0.9.16 b
- FileZilla FileZilla Server 0.9.17
- FileZilla FileZilla Server 0.9.19
- FileZilla FileZilla Server 0.9.1b
- FileZilla FileZilla Server 0.9.2
- FileZilla FileZilla Server 0.9.20
- FileZilla FileZilla Server 0.9.21
- FileZilla FileZilla Server 0.9.3
- FileZilla FileZilla Server 0.9.4d
- FileZilla FileZilla Server 0.9.4e
- FileZilla FileZilla Server 0.9.5
- FileZilla FileZilla Server 0.9.6
- FileZilla FileZilla Server 0.9.8
- FileZilla FileZilla Server 0.9.8 a
- FileZilla FileZilla Server 0.9.8 b
- FileZilla FileZilla Server 0.9.8 c
- FileZilla FileZilla Server 0.9.9
References:
- FileZilla: FileZilla Server Change Log 0.9.22
- FileZilla: Vendor Home Page
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