nfdump 1.6.17 and earlier is affected by an integer overflow in the function Process_ipfix_template_withdraw in ipfix.c that can be abused in order to crash the process remotely (denial of service).
github.com/phaag/nfdump/commit/3b006ededaf351f1723aea6c727c9edd1b1fff9b
github.com/phaag/nfdump/issues/171
lists.debian.org/debian-lts-announce/2020/09/msg00021.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ULSZMKA7P7REJMANVL7D6WMZ2L7IRSET/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTONOGJU5FSMFNRCT6OHXYUMDRKH4RPA/
security.gentoo.org/glsa/202003-17