FKIE_CVE-2020-25584

Vulnerability from fkie_nvd - Published: 2021-04-07 15:15 - Updated: 2026-06-17 03:06
Severity
7.5 (High) - CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Summary
In FreeBSD 13.0-STABLE before n245118, 12.2-STABLE before r369552, 11.4-STABLE before r369560, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, a superuser inside a FreeBSD jail configured with the non-default allow.mount permission could cause a race condition between the lookup of ".." and remounting a filesystem, allowing access to filesystem hierarchy outside of the jail.
References
secteam@freebsd.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.ascVendor Advisory
secteam@freebsd.orghttps://security.netapp.com/advisory/ntap-20210423-0009/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.ascVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210423-0009/Third Party Advisory
Impacted products
Vendor Product Version
freebsd freebsd *
freebsd freebsd *
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 12.2
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
freebsd freebsd 13.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FreeBSD",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 12.2-RELEASE before p6, 11.4-RELEASE before p9"
            }
          ]
        }
      ],
      "source": "secteam@freebsd.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "55C77F87-F478-418A-861F-554D2196090B",
              "versionEndExcluding": "11.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "17AC6343-11EC-4586-91EB-D7C4D4C1699E",
              "versionEndExcluding": "12.2",
              "versionStartIncluding": "12.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:-:*:*:*:*:*:*",
              "matchCriteriaId": "4A865EA1-01D7-4E5A-9D13-80780F8A9D7A",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "B80FBD1B-D03E-4408-9150-2F86FAF7F1D7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p1:*:*:*:*:*:*",
              "matchCriteriaId": "9FCA6A72-2A72-45FD-A43D-B5BF7C329121",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p2:*:*:*:*:*:*",
              "matchCriteriaId": "90F9B3CB-3B60-4AA8-9EAF-4F0BE7D27691",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p3:*:*:*:*:*:*",
              "matchCriteriaId": "C04EE177-C7D1-4049-B680-F961A27C677F",
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            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p4:*:*:*:*:*:*",
              "matchCriteriaId": "218AF216-7B03-4C02-B55F-2316AF14074B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.4:p5:*:*:*:*:*:*",
              "matchCriteriaId": "33266717-0359-4243-868B-B84436E2A89E",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "2B0FB7BE-DB4E-47CE-8B51-C43DC5AADD17",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "0D427061-B399-47BA-865D-9FAB315210CF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*",
              "matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.2:p1:*:*:*:*:*:*",
              "matchCriteriaId": "62A178A3-6A52-4981-9A27-FB07AD8AF778",
              "vulnerable": true
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            {
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              "vulnerable": true
            },
            {
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.0:beta4:*:*:*:*:*:*",
              "matchCriteriaId": "B149BF69-951D-47B4-996C-9E4773DA75B7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "FC271C93-EB83-4301-B7BA-F3249B71B1EA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "04329338-AC28-4A74-BE6B-CE8EC6CC37B7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:13.0:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "ADBA841F-5C83-4759-84B7-B59DA1B12EA8",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "6A8F38B3-A6DA-4178-A2BD-0D4F0267C384",
              "vulnerable": true
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              "matchCriteriaId": "9BB028A0-70F6-42DA-9E5A-F7AAF74ED45B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 13.0-STABLE before n245118, 12.2-STABLE before r369552, 11.4-STABLE before r369560, 13.0-RC5 before p1, 12.2-RELEASE before p6, and 11.4-RELEASE before p9, a superuser inside a FreeBSD jail configured with the non-default allow.mount permission could cause a race condition between the lookup of \"..\" and remounting a filesystem, allowing access to filesystem hierarchy outside of the jail."
    },
    {
      "lang": "es",
      "value": "En FreeBSD versiones 13.0-STABLE anteriores a n245118, versiones 12.2-STABLE anteriores a r369552, versiones 11.4-STABLE anteriores a r369560, versiones 13.0-RC5 anteriores a p1, versiones 12.2-RELEASE anteriores a p6 y versiones 11.4-RELEASE anteriores a p9, un superusuario dentro de una jaula FreeBSD configurada con el permiso por defecto allow.mount podr\u00eda causar una condici\u00f3n de carrera entre la b\u00fasqueda de \"..\" y volver a montar un sistema de archivos, permitiendo el acceso a la jerarqu\u00eda del sistema de archivos fuera de jail"
    }
  ],
  "id": "CVE-2020-25584",
  "lastModified": "2026-06-17T03:06:56.067",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 6.2,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:L/AC:H/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 1.9,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-04-07T15:15:13.013",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210423-0009/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-21:10.jail_mount.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210423-0009/"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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