The dataconn function in ftpd.c in netkit ftpd (netkit-ftpd) 0.17, when certain modifications to support SSL have been introduced, calls fclose on an uninitialized file stream, which allows remote attackers to cause a denial of service (daemon crash)

Double free vulnerability in the getreply function in ftp.c in netkit ftp (netkit-ftp) 0.17 20040614 and later allows remote FTP servers to cause a denial of service (application crash) and possibly have unspecified other impact via some types of FTP