This script is Copyright (C) 2015 Tenable Network Security, Inc.
The remote FreeBSD host is missing a security-related update.
Chrony News reports :
CVE-2015-1853: DoS attack on authenticated symmetric NTP associations
CVE-2015-1821: Heap-based buffer overflow in access configuration
CVE-2015-1822: Use of uninitialized pointer in command processing
See also :
Update the affected package.
Risk factor :
Medium / CVSS Base Score : 6.5