CVE-2016-1549

6.5 MEDIUM
Published: January 06, 2017 Modified: May 06, 2026
View on NVD

Description

A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Source: cret@cert.org
http://www.securityfocus.com/bid/88200
Source: cret@cert.org
http://www.securitytracker.com/id/1035705
Source: cret@cert.org
http://www.talosintelligence.com/reports/TALOS-2016-0083/
Source: cret@cert.org
Mitigation Technical Description Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
Source: cret@cert.org
https://security.gentoo.org/glsa/201607-15
Source: cret@cert.org
https://security.netapp.com/advisory/ntap-20171004-0002/
Source: cret@cert.org
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
Source: cret@cert.org
https://www.synology.com/support/security/Synology_SA_18_13
Source: cret@cert.org
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/88200
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1035705
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.talosintelligence.com/reports/TALOS-2016-0083/
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Technical Description Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201607-15
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20171004-0002/
Source: af854a3a-2127-422b-91ae-364da2661108
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.synology.com/support/security/Synology_SA_18_13
Source: af854a3a-2127-422b-91ae-364da2661108

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
1.0%
77th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-19

Affected Vendors

ntp

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