FKIE_CVE-2020-25583

Vulnerability from fkie_nvd - Published: 2021-03-29 20:15 - Updated: 2026-06-17 03:06
Severity
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 when processing a DNSSL option, rtsold(8) decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains the label's length. rtsold(8) did not validate label lengths correctly and could overflow the destination buffer.
References
secteam@freebsd.orghttps://security.FreeBSD.org/advisories/FreeBSD-SA-20:32.rtsold.ascVendor Advisory
secteam@freebsd.orghttps://security.netapp.com/advisory/ntap-20210423-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.FreeBSD.org/advisories/FreeBSD-SA-20:32.rtsold.ascVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210423-0004/Third Party Advisory
Impacted products
Vendor Product Version
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.3
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 11.4
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.1
freebsd freebsd 12.2
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "FreeBSD",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 12.2-RELEASE before p1, 12.1-RELEASE before p11, 11.4-RELEASE before p5"
            }
          ]
        }
      ],
      "source": "secteam@freebsd.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*",
              "matchCriteriaId": "F35957CE-AF9F-40CA-BDD1-FA6A0E73783F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p1:*:*:*:*:*:*",
              "matchCriteriaId": "EA929713-B797-494A-853D-C121D9D69519",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p10:*:*:*:*:*:*",
              "matchCriteriaId": "B87AF171-95AC-4DDA-8D94-694F85638B46",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p11:*:*:*:*:*:*",
              "matchCriteriaId": "1CC8B031-41BB-4846-B092-7E4BC6F35D6B",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "83E34012-BC9D-4F0C-AAE1-FE5767B4EED6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p13:*:*:*:*:*:*",
              "matchCriteriaId": "57EF03AC-0934-46FD-A77C-76A0CAF4342C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*",
              "matchCriteriaId": "3C3D8EDC-91D3-45B2-AC1D-EF4346D4A714",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "EA5006FF-06A5-4D95-BF5B-29F26248D11F",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "A705031B-FD63-4076-B92E-E826E11D7111",
              "vulnerable": true
            },
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              "matchCriteriaId": "11C1EFB1-68E5-45F4-A7E1-744574F290D1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*",
              "matchCriteriaId": "25F649A7-9265-4552-8934-BCE083363982",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p7:*:*:*:*:*:*",
              "matchCriteriaId": "F202C856-5B95-4796-AC4A-1F210E7BAB8F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p8:*:*:*:*:*:*",
              "matchCriteriaId": "9419C866-C478-4CDE-A9A1-E592D8FF0933",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p9:*:*:*:*:*:*",
              "matchCriteriaId": "2B6DFC23-A7A1-431A-9AD9-A820579F95F0",
              "vulnerable": true
            },
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              "vulnerable": true
            },
            {
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              "matchCriteriaId": "C04EE177-C7D1-4049-B680-F961A27C677F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:-:*:*:*:*:*:*",
              "matchCriteriaId": "BD730B6A-F123-4685-ACB3-4F20AAAB77F3",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "508150E3-2C0C-4EEB-BFC9-BB5CEB404C06",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p2:*:*:*:*:*:*",
              "matchCriteriaId": "B5D692EF-A5D7-430E-91BA-4CD137343B66",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p3:*:*:*:*:*:*",
              "matchCriteriaId": "D50C60A7-4C9F-4636-92E9-9F5B8B01BE5B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p4:*:*:*:*:*:*",
              "matchCriteriaId": "6C49F6C7-A740-42F4-93BB-512CBF334516",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p5:*:*:*:*:*:*",
              "matchCriteriaId": "402740C4-5B55-423F-BAD2-F742E1E21ADC",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p6:*:*:*:*:*:*",
              "matchCriteriaId": "9DCAA10A-C612-45E0-84B7-55897F49D65E",
              "vulnerable": true
            },
            {
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              "matchCriteriaId": "CB6258A5-8066-48B8-A417-09A1547DD57A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p8:*:*:*:*:*:*",
              "matchCriteriaId": "6601C7C4-EC36-4EAA-90AC-D3156A2BF330",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p9:*:*:*:*:*:*",
              "matchCriteriaId": "EDCBC06C-B16B-498A-A99B-5F9F17C5FF03",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.2:-:*:*:*:*:*:*",
              "matchCriteriaId": "73D9C08B-8F5B-40C4-A5BD-B00D2E4C012D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 12.2-STABLE before r368250, 11.4-STABLE before r368253, 12.2-RELEASE before p1, 12.1-RELEASE before p11 and 11.4-RELEASE before p5 when processing a DNSSL option, rtsold(8) decodes domain name labels per an encoding specified in RFC 1035 in which the first octet of each label contains the label\u0027s length. rtsold(8) did not validate label lengths correctly and could overflow the destination buffer."
    },
    {
      "lang": "es",
      "value": "En FreeBSD versiones 12.2-STABLE anteriores a r368250, versiones 11.4-STABLE anteriores a r368253, versiones 12.2-RELEASE anteriores a p1, versiones 12.1-RELEASE anteriores a p11 y  versiones 11.4-RELEASE anteriores a p5, cuando se procesa una opci\u00f3n DNSSL, rtsold(8) decodifica las etiquetas de nombre de dominio seg\u00fan una codificaci\u00f3n especificada en RFC 1035 en el que el primer octeto de cada etiqueta contiene la longitud de la etiqueta.\u0026#xa0;rtsold(8) no comprob\u00f3 las longitudes de las etiquetas correctamente y podr\u00eda desbordar el b\u00fafer de destino"
    }
  ],
  "id": "CVE-2020-25583",
  "lastModified": "2026-06-17T03:06:55.953",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 10.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 10.0,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-03-29T20:15:12.953",
  "references": [
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:32.rtsold.asc"
    },
    {
      "source": "secteam@freebsd.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210423-0004/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:32.rtsold.asc"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20210423-0004/"
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-120"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.


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