CVE-2016-4955
Published · Updated
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 8.8%
exploitation probability
8.8%top 5% of all CVEs
observed exploitation
nono source reports it
ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.
Affected products
n/a · n/aReferences
http://bugs.ntp.org/3043http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlhttp://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.htmlhttp://packetstormsecurity.com/files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.ntp.htmlhttps://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf