FileZilla Server versions prior to 0.9.22 are vulnerable to remote denial of service (crash) when processing wildcard arguments to LIST/NLST commands, malformed PORT commands, or other malformed commands. This leads to NULL pointer dereference that can crash the server.
id: CVE-2006-6565
info:
name: FileZilla Server < 0.9.22 - DoS via Wildcard Commands
author: pus
...