An issue was discovered in Suricata 4.1.3. The function ftp_pasv_response lacks a check for the length of part1 and part2, leading to a crash within the ftp/mod.rs file.Referenceshttps://suricata-ids.org/2019/04/30/suricata-4-1-4-released/https://redmine.openinfosecfoundation.org/issues/2949
