usn-2567-1
Vulnerability from osv_ubuntu
Published
2015-04-13 15:13
Modified
2026-02-10 04:40
Summary
ntp vulnerabilities
Details

Miroslav Lichvar discovered that NTP incorrectly validated MAC fields. A remote attacker could possibly use this issue to bypass authentication and spoof packets. (CVE-2015-1798)

Miroslav Lichvar discovered that NTP incorrectly handled certain invalid packets. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-1799)

Juergen Perlinger discovered that NTP incorrectly generated MD5 keys on big-endian platforms. This issue could either cause ntp-keygen to hang, or could result in non-random keys. (CVE number pending)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2015-1798",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-1799",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.3"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.3?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:4.2.6.p5+dfsg-3ubuntu2.14.04.3"
            }
          ],
          "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"
      ]
    }
  ],
  "aliases": [],
  "details": "Miroslav Lichvar discovered that NTP incorrectly validated MAC fields. A\nremote attacker could possibly use this issue to bypass authentication and\nspoof packets. (CVE-2015-1798)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain invalid\npackets. A remote attacker could possibly use this issue to cause a denial\nof service. (CVE-2015-1799)\n\nJuergen Perlinger discovered that NTP incorrectly generated MD5 keys on\nbig-endian platforms. This issue could either cause ntp-keygen to hang, or\ncould result in non-random keys. (CVE number pending)\n",
  "id": "USN-2567-1",
  "modified": "2026-02-10T04:40:53Z",
  "published": "2015-04-13T15:13:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2567-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-1798"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-1799"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "ntp vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2015-1798",
    "UBUNTU-CVE-2015-1799"
  ]
}



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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

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.