CVE-2018-7185

HIGH

ntp 4.2.6-4.2.8 - Denial of Service via Zero-Origin Timestamp Packet

Title source: llm
STIX 2.1

Description

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.

References (12)

Core 12
Core References
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201805-12
Third Party Advisory vendor-advisory x_refsource_freebsd
https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3707-2/
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20180626-0001/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103339
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/541824/100/0/threaded
Mitigation, Vendor Advisory x_refsource_confirm
http://support.ntp.org/bin/view/Main/NtpBug3454
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3707-1/
Third Party Advisory x_refsource_confirm
https://www.synology.com/support/security/Synology_SA_18_13

Scores

CVSS v3 7.5
EPSS 0.0292
EPSS Percentile 86.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (21)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
canonical/ubuntu_linux 18.04
hpe/hpux-ntp < c.4.2.8.4.0
netapp/hci
netapp/solidfire
ntp/ntp 4.2.8 (24 CPE variants)
ntp/ntp 4.2.6 - 4.2.8
... and 11 more
Published Mar 06, 2018
Tracked Since Feb 18, 2026