ubuntu-cve-2018-12327
Vulnerability from osv_ubuntu
Published
2018-06-20 14:29
Modified
2025-09-08 16:44
Summary
Details

Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
negligible
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.6.p5+dfsg-3ubuntu2",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.1",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.2",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.3",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.5",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.6",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.7",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.8",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.10",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.11",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.12",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.13"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.10"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p4+dfsg-3ubuntu5.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.8p4+dfsg-3ubuntu5.10?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2.8p4+dfsg-3ubuntu5.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.6.p5+dfsg-3ubuntu8",
        "1:4.2.6.p5+dfsg-3ubuntu8.1",
        "1:4.2.6.p5+dfsg-3ubuntu9",
        "1:4.2.8p4+dfsg-3ubuntu1",
        "1:4.2.8p4+dfsg-3ubuntu2",
        "1:4.2.8p4+dfsg-3ubuntu3",
        "1:4.2.8p4+dfsg-3ubuntu4",
        "1:4.2.8p4+dfsg-3ubuntu5",
        "1:4.2.8p4+dfsg-3ubuntu5.1",
        "1:4.2.8p4+dfsg-3ubuntu5.2",
        "1:4.2.8p4+dfsg-3ubuntu5.3",
        "1:4.2.8p4+dfsg-3ubuntu5.4",
        "1:4.2.8p4+dfsg-3ubuntu5.5",
        "1:4.2.8p4+dfsg-3ubuntu5.6",
        "1:4.2.8p4+dfsg-3ubuntu5.7",
        "1:4.2.8p4+dfsg-3ubuntu5.8",
        "1:4.2.8p4+dfsg-3ubuntu5.9"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.3+esm1"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.3+esm1"
          },
          {
            "binary_name": "sntp",
            "binary_version": "1:4.2.8p10+dfsg-5ubuntu7.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.8p10+dfsg-5ubuntu7.3+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2.8p10+dfsg-5ubuntu7.3+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.8p10+dfsg-5ubuntu3",
        "1:4.2.8p10+dfsg-5ubuntu4",
        "1:4.2.8p10+dfsg-5ubuntu5",
        "1:4.2.8p10+dfsg-5ubuntu6",
        "1:4.2.8p10+dfsg-5ubuntu7",
        "1:4.2.8p10+dfsg-5ubuntu7.1",
        "1:4.2.8p10+dfsg-5ubuntu7.1+esm1",
        "1:4.2.8p10+dfsg-5ubuntu7.1+esm2",
        "1:4.2.8p10+dfsg-5ubuntu7.2",
        "1:4.2.8p10+dfsg-5ubuntu7.2+esm1",
        "1:4.2.8p10+dfsg-5ubuntu7.3"
      ]
    }
  ],
  "aliases": [],
  "details": "Stack-based buffer overflow in ntpq and ntpdc of NTP version 4.2.8p11 allows an attacker to achieve code execution or escalate to higher privileges via a long string as the argument for an IPv4 or IPv6 command-line parameter. NOTE: It is unclear whether there are any common situations in which ntpq or ntpdc is used with a command line from an untrusted source.",
  "id": "UBUNTU-CVE-2018-12327",
  "modified": "2025-09-08T16:44:54Z",
  "published": "2018-06-20T14:29:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-12327"
    },
    {
      "type": "REPORT",
      "url": "https://gist.github.com/fakhrizulkifli/9b58ed8e0354e8deee50b0eebd1c011f"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4229-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4229-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-12327"
    }
  ],
  "related": [
    "USN-4229-1",
    "USN-4229-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "negligible",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-12327"
  ]
}



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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

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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.