Flaw bug created to hold information about an old flaw we knew something about. For more details see the MITRE CVE description.
MITRE description: The FTP protocol implementation in Mozilla Firefox before 1.5.0.11 and 2.x before 2.0.0.3 allows remote attackers to force the client to connect to other servers, perform a proxied port scan, or obtain sensitive information by specifying an alternate server address in an FTP PASV response.