CVE-2016-9310

ntp: Mode 6 unauthenticated trap information disclosure and DDoS vector

Loading…

Severity

Moderate

Red Hat Product Security

4.8

CVSS 3.0

Review impact separately from score.

Published · November 21, 2016

Updated · May 13, 2026

Description

A flaw was found in the control mode functionality of ntpd. A remote attacker could send a crafted control mode packet which could lead to information disclosure or result in DDoS amplification attacks.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Use "restrict default noquery ..." in your ntp.conf file.

CVSS / CWE

CVSS 3.0 · 4.8
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS 2.0 · 5.8
AV:N/AC:M/Au:N/C:P/I:N/A:P

CWE-400 · Uncontrolled Resource Consumption