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CVE-2020-7454

Estado: ModificadaCrítica (9.8)—

In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Freebsd — Freebsd

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-7454",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secteam@freebsd.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 12.1-RELEASE before p5, 11.4-BETA1 before p1, and 11.3-RELEASE before p9"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-05-13T16:15:13.027",
  "references": [
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.asc",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20200518-0005/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-659/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-660/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.asc",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20200518-0005/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-659/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-20-660/",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module."
    },
    {
      "lang": "es",
      "value": "En FreeBSD versiones 12.1-STABLE anteriores a r360971, versiones 12.1-RELEASE anteriores a p5, versiones 11.4-STABLE anteriores a r360971, versiones 11.4-BETA1 anteriores a p1 y versiones 11.3-RELEASE anteriores p9, libalias no comprueba apropiadamente la longitud del paquete resultando en módulos que causan una condición de lectura y escritura fuera de límites si ninguna comprobación fue incorporada dentro del módulo."
    }
  ],
  "lastModified": "2026-06-17T03:24:48.800",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:-:*:*:*:*:*:*",
              "vulnerable": true,
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            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "EA929713-B797-494A-853D-C121D9D69519"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3C3D8EDC-91D3-45B2-AC1D-EF4346D4A714"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "EA5006FF-06A5-4D95-BF5B-29F26248D11F"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A705031B-FD63-4076-B92E-E826E11D7111"
            },
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              "vulnerable": true,
              "matchCriteriaId": "11C1EFB1-68E5-45F4-A7E1-744574F290D1"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "25F649A7-9265-4552-8934-BCE083363982"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F202C856-5B95-4796-AC4A-1F210E7BAB8F"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.3:p8:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9419C866-C478-4CDE-A9A1-E592D8FF0933"
            },
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              "vulnerable": true,
              "matchCriteriaId": "4A865EA1-01D7-4E5A-9D13-80780F8A9D7A"
            },
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              "matchCriteriaId": "B80FBD1B-D03E-4408-9150-2F86FAF7F1D7"
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            },
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              "criteria": "cpe:2.3:o:freebsd:freebsd:12.1:p1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "508150E3-2C0C-4EEB-BFC9-BB5CEB404C06"
            },
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              "vulnerable": true,
              "matchCriteriaId": "B5D692EF-A5D7-430E-91BA-4CD137343B66"
            },
            {
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              "matchCriteriaId": "D50C60A7-4C9F-4636-92E9-9F5B8B01BE5B"
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            {
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              "matchCriteriaId": "6C49F6C7-A740-42F4-93BB-512CBF334516"
            }
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          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org"
}