CVE-2017-6463

MEDIUM

NTP < 4.2.8p10 and 4.3.x < 4.3.94 - Authenticated Denial of Service via Invalid :config Directive

Title source: llm
STIX 2.1

Description

NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.

References (10)

Core 10
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038123
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208144
Vendor Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3707-2/
Various Sources vendor-advisory x_refsource_freebsd
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:03.ntp.asc
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/97049
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2017:3071
Vendor Advisory x_refsource_confirm
http://support.ntp.org/bin/view/Main/NtpBug3387
Vendor Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:0855

Scores

CVSS v3 6.5
EPSS 0.0524
EPSS Percentile 91.5%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-20
Status published
Products (50)
ntp/ntp 4.2.8 p9
ntp/ntp 4.3.0
ntp/ntp 4.3.1
ntp/ntp 4.3.2
ntp/ntp 4.3.3
ntp/ntp 4.3.4
ntp/ntp 4.3.5
ntp/ntp 4.3.6
ntp/ntp 4.3.7
ntp/ntp 4.3.8
... and 40 more
Published Mar 27, 2017
Tracked Since Feb 18, 2026