sshd in OpenSSH before 7.4 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an out-of-sequence NEWKEYS message, as demonstrated by Honggfuzz, related to kex.c and packet.c.Referenceshttps://www.openssh.com/releasenotes.htmlhttps://security.netapp.com/advisory/ntap-20180423-0003/https://lists.debian.org/debian-lts-announce/2018/01/msg00031.htmlhttps://anongit.mindrot.org/openssh.git/commit/?id=28652bca29046f62c7045e933e6b931de1d16737https://usn.ubuntu.com/3809-1/http://www.securityfocus.com/bid/102780https://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlhttp://blog.swiecki.net/2018/01/fuzzing-tcp-servers.htmlhttps://kc.mcafee.com/corporate/index?page=content&id=SB10284https://support.f5.com/csp/article/K32485746?utm_source=f5support&%3Butm_medium=RSShttps://cert-portal.siemens.com/productcert/pdf/ssa-676336.pdf
