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CVE-2016-7431 (GCVE-0-2016-7431)

Vulnerability from cvelistv5 – Published: 2017-01-13 16:00 – Updated: 2024-08-06 01:57
VLAI
Summary
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.
Severity
5.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • n/a
Assigner
References
URL Tags
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http://www.securityfocus.com/bid/94454 vdb-entryx_refsource_BID
http://support.ntp.org/bin/view/Main/SecurityNoti… x_refsource_CONFIRM
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https://bto.bluecoat.com/security-advisory/sa139 x_refsource_CONFIRM
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http://www.securityfocus.com/archive/1/540254/100… mailing-listx_refsource_BUGTRAQ
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https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 x_refsource_MISC
Date Public
2016-11-21 00:00
Show details on NVD website
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              "url": "http://www.securityfocus.com/archive/1/archive/1/539955/100/0/threaded"
            },
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              "refsource": "CONFIRM",
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
            },
            {
              "name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11",
              "refsource": "MISC",
              "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2016-7431",
    "datePublished": "2017-01-13T16:00:00.000Z",
    "dateReserved": "2016-09-09T00:00:00.000Z",
    "dateUpdated": "2024-08-06T01:57:47.665Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2016-7431",
      "date": "2026-09-16",
      "epss": "0.0871",
      "percentile": "0.94862"
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      "id": "CVE-2016-7431",
      "lastModified": "2024-11-21T02:57:59.770",
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      "published": "2017-01-13T16:59:00.467",
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-05-13T01:16:08+00:00",
      "cve": "CVE-2016-7431",
      "id": "CVE-2016-7431",
      "initial_release_date": "2016-11-21T00:00:00+00:00",
      "product_status:known_not_affected": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ntp: Zero Origin timestamp regression",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-7431.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:12:20Z",
      "cve": "CVE-2016-7431",
      "id": "CVE-2016-7431",
      "initial_release_date": "2023-02-15T04:58:20Z",
      "product_status:known_affected": "30",
      "product_status:recommended": "107",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-7431",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-7431.json",
      "version": "15"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.