ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.
CVE-2016-4953 (leap, linux_enterprise_desktop, linux_enterprise_server, manager, manager_proxy, ntp, openstack_cloud, opensuse, solaris)
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