Vulnerability-Lookup

ubuntu-cve-2023-26555

Vulnerability from osv_ubuntu

Published

2023-04-11 21:15

Modified

2025-10-24 05:01

Summary

Details

praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver.

Severity

6.4 (Medium)


                    
                      CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

6.4 (Medium)


                    
                      CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-26555	REPORT
	https://github.com/spwpun/ntp-4.2.8p15-cves/blob/…	REPORT
	https://github.com/spwpun/ntp-4.2.8p15-cves/issue…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-26555	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "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=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "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",
        "1:4.2.6.p5+dfsg-3ubuntu2.14.04.13+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "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"
            }
          ],
          "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",
        "1:4.2.8p4+dfsg-3ubuntu5.10"
      ]
    },
    {
      "ecosystem_specific": {
        "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"
            }
          ],
          "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",
        "1:4.2.8p10+dfsg-5ubuntu7.3+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
          },
          {
            "binary_name": "sntp",
            "binary_version": "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.8p12+dfsg-3ubuntu2",
        "1:4.2.8p12+dfsg-3ubuntu3",
        "1:4.2.8p12+dfsg-3ubuntu4",
        "1:4.2.8p12+dfsg-3ubuntu4.20.04.1",
        "1:4.2.8p12+dfsg-3ubuntu4.20.04.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "ntp",
            "binary_version": "1:4.2.8p15+dfsg-1ubuntu2"
          },
          {
            "binary_name": "ntpdate",
            "binary_version": "1:4.2.8p15+dfsg-1ubuntu2"
          },
          {
            "binary_name": "sntp",
            "binary_version": "1:4.2.8p15+dfsg-1ubuntu2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "ntp",
        "purl": "pkg:deb/ubuntu/ntp@1:4.2.8p15+dfsg-1ubuntu2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:4.2.8p12+dfsg-3ubuntu6",
        "1:4.2.8p15+dfsg-1ubuntu1",
        "1:4.2.8p15+dfsg-1ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver.",
  "id": "UBUNTU-CVE-2023-26555",
  "modified": "2025-10-24T05:01:51Z",
  "published": "2023-04-11T21:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-26555"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26555"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506546409"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-26555"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-26555"
  ]
}

CVE-2023-26555 (GCVE-0-2023-26555)

Vulnerability from cvelistv5 – Published: 2023-04-11 00:00 – Updated: 2025-02-11 21:03

Summary

praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver.

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

n/a
CWE-787 - Out-of-bounds Write

Assigner

mitre

References

4 references

URL	Tags
https://github.com/spwpun/ntp-4.2.8p15-cves/blob/…
https://github.com/spwpun/ntp-4.2.8p15-cves/issue…
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T11:53:53.912Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26555"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506546409"
          },
          {
            "name": "FEDORA-2023-611a143d5f",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY2SVYH4MKPAXEYHCCXD3Z6VGINLSVHK/"
          },
          {
            "name": "FEDORA-2023-c0762a0e57",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3VHEHHWCTYSB7HVJLYPVK4RPJZ5LX52/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "PHYSICAL",
              "availabilityImpact": "HIGH",
              "baseScore": 6.4,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-26555",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-11T21:02:31.010496Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-787",
                "description": "CWE-787 Out-of-bounds Write",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-11T21:03:51.172Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "praecis_parse in ntpd/refclock_palisade.c in NTP 4.2.8p15 has an out-of-bounds write. Any attack method would be complex, e.g., with a manipulated GPS receiver."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-14T00:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/blob/main/CVE-2023-26555"
        },
        {
          "url": "https://github.com/spwpun/ntp-4.2.8p15-cves/issues/1#issuecomment-1506546409"
        },
        {
          "name": "FEDORA-2023-611a143d5f",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IY2SVYH4MKPAXEYHCCXD3Z6VGINLSVHK/"
        },
        {
          "name": "FEDORA-2023-c0762a0e57",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3VHEHHWCTYSB7HVJLYPVK4RPJZ5LX52/"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-26555",
    "datePublished": "2023-04-11T00:00:00.000Z",
    "dateReserved": "2023-02-25T00:00:00.000Z",
    "dateUpdated": "2025-02-11T21:03:51.172Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

ubuntu-cve-2023-26555

Vulnerability from osv_ubuntu

CVE-2023-26555 (GCVE-0-2023-26555)

Tags

Sightings

Nomenclature