CVE-2018-7170 (GCVE-0-2018-7170)

Vulnerability from cvelistv5 – Published: 2018-03-06 20:00 – Updated: 2024-08-05 06:24
VLAI
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
  • n/a
Assigner
References
Date Public
2018-02-28 00:00
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      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
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    },
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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T14:02:08+00:00",
      "cve": "CVE-2018-7170",
      "id": "CVE-2018-7170",
      "initial_release_date": "2018-02-27T00:00:00+00:00",
      "product_status:known_affected": "13",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ntp: Ephemeral association time spoofing additional protection",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-7170.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "low",
      "current_release_date": "2025-07-16T23:55:49Z",
      "cve": "CVE-2018-7170",
      "id": "CVE-2018-7170",
      "initial_release_date": "2023-02-15T04:30:01Z",
      "product_status:known_affected": "25",
      "product_status:recommended": "108",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2018-7170",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2018-7170.json",
      "version": "13"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.