The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
http://support.ntp.org/bin/view/Main/NtpBug2947
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
http://www.securitytracker.com/id/1034782
https://bto.bluecoat.com/security-advisory/sa113
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
Source: MITRE
Published: 2017-01-30
Updated: 2017-11-21
Type: CWE-284
Base Score: 5.8
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:P
Impact Score: 4.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 4.8
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Impact Score: 2.5
Exploitability Score: 2.2
Severity: MEDIUM