{"schemaVersion":3,"id":"CVE-2016-1547","aliases":["UBUNTU-CVE-2016-1547","DEBIAN-CVE-2016-1547"],"status":"published","duplicateOf":null,"title":null,"description":"An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. 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