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CVE-2019-5598

Estado: ModificadaAlta (7.5)—

In FreeBSD 11.3-PRERELEASE before r345378, 12.0-STABLE before r345377, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in pf does not check if the outer ICMP or ICMP6 packet has the same destination IP as the source IP of the inner protocol packet allowing a maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules and be passed to a host that would otherwise be unavailable.

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-2019-5598",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "secteam@freebsd.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "FreeBSD",
          "versions": [
            {
              "status": "affected",
              "version": "FreeBSD 11.2 before 11.2-RELEASE-p10 and 12.0 before 12.0-RELEASE-p4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-05-15T16:29:01.080",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/108395",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20190611-0001/",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html",
      "source": "secteam@freebsd.org"
    },
    {
      "url": "https://www.synacktiv.com/posts/systems/icmp-reachable.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "secteam@freebsd.org"
    },
    {
      "url": "http://packetstormsecurity.com/files/152934/FreeBSD-Security-Advisory-FreeBSD-SA-19-06.pf.html",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://seclists.org/fulldisclosure/2025/Apr/1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/108395",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-19:06.pf.asc",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.netapp.com/advisory/ntap-20190611-0001/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.synacktiv.com/posts/systems/icmp-reachable.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In FreeBSD 11.3-PRERELEASE before r345378, 12.0-STABLE before r345377, 11.2-RELEASE before 11.2-RELEASE-p10, and 12.0-RELEASE before 12.0-RELEASE-p4, a bug in pf does not check if the outer ICMP or ICMP6 packet has the same destination IP as the source IP of the inner protocol packet allowing a maliciously crafted ICMP/ICMP6 packet could bypass the packet filter rules and be passed to a host that would otherwise be unavailable."
    },
    {
      "lang": "es",
      "value": "n FreeBSD 11.3-PRERELEASE antes de r345378, 12.0-ESTABLE antes de r345377, 11.2-RELEASE antes de 11.2-RELEASE-p10, y 12.0-RELEASE antes de 12.0-RELEASE-p4, un error en pf no verifica si el paquete ICMP exterior o ICMP6 tiene la misma IP de destino que la IP de la fuente del paquete de protocolo interno permitiendo la creación maliciosa de un paquete ICMP / ICMP6   podría eludir las reglas de el  Packet Filter y pasar a un host que de lo contrario estará inhabilitado."
    }
  ],
  "lastModified": "2026-06-17T02:37:54.930",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3ACD1D8D-B3BC-4E99-B846-90A4071DB87B"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "699FE432-8DF0-49F1-A98B-0E19CE01E5CE"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "20B06752-39EE-4600-AC1F-69FB9C88E2A8"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "22365F7C-2B00-4B61-84E8-EFBA3B8CFDC0"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E86CD544-86C4-4D9D-9CE5-087027509EDA"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "64E47AE7-BB45-428E-90E9-38BFDFF23650"
            },
            {
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              "vulnerable": true,
              "matchCriteriaId": "586B9FA3-65A2-41EB-A848-E4A75565F0CA"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:*",
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              "matchCriteriaId": "F0B15B89-3AD2-4E03-9F47-DA934702187B"
            },
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              "vulnerable": true,
              "matchCriteriaId": "878DF67E-420A-4229-BEA8-DB9F7161ED9A"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "826B53C2-517F-4FC6-92E8-E7FCB24F91B4"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "93F10A46-AEF2-4FDD-92D6-0CF07B70F986"
            },
            {
              "criteria": "cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C4029113-130F-4A33-A8A0-BC3E74000378"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secteam@freebsd.org"
}