The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x before 4.0.6 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser, as exploited in the wild in November 2018.Referenceshttps://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.htmlhttps://redmine.openinfosecfoundation.org/issues/2658#change-10374https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-November/016316.html
