Description
ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
Published: 2018-03-06
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2018-18912 ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.
History

Sun, 13 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.01445}

epss

{'score': 0.02063}


Tue, 14 Jan 2025 19:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:synology:diskstation_manager:*:*:*:*:*:*:*:* cpe:2.3:o:synology:diskstation_manager:*:*:*:*:*:*:*:*

Subscriptions

Hpe Hpux-ntp
Netapp Hci Solidfire
Ntp Ntp
Synology Diskstation Manager Router Manager Skynas Virtual Diskstation Manager Vs960hd Vs960hd Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T06:24:10.327Z

Reserved: 2018-02-15T00:00:00.000Z

Link: CVE-2018-7170

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-03-06T20:29:01.297

Modified: 2025-01-14T19:29:55.853

Link: CVE-2018-7170

cve-icon Redhat

Severity : Low

Publid Date: 2018-02-27T00:00:00Z

Links: CVE-2018-7170 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses