New! Vulnerability Priority Rating (VPR)
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VPR Score: 3.6
Synopsis
The remote device is missing a vendor-supplied security patch.
Description
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.(CVE-2016-4955)
Solution
Upgrade to one of the non-vulnerable versions listed in the F5 Solution K03331206.