The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.Referenceshttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_ushttps://usn.ubuntu.com/3707-2/https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03883en_ushttp://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilitieshttp://nwtime.org/ntp428p9_release/http://support.ntp.org/bin/view/Main/NtpBug3114https://www.kb.cert.org/vuls/id/633847https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03899en_ushttp://www.securitytracker.com/id/1037354https://bto.bluecoat.com/security-advisory/sa139https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.aschttp://www.securityfocus.com/bid/94447
