Updated ntp packages fix security vulnerability

ntpq and ntpdc disclose the origin timestamp to unauthenticated clients, which may allow an attacker to impersonate a legitimate peer CVE-2015-8139. An attacker who is able to spoof packets with correct origin timestamps from enough servers before the expected response packets arrive at the targe...

ntp: distributed denial of service amplification

CVE-2016-4953 distributed denial of service amplification An attacker who knows the origin timestamp and can send a spoofed packet containing a CRYPTO-NAK to an ephemeral peer target before any other response is sent can demobilize that association. Credit to Miroslav Lichvar of Red Hat -...