« Volver al listado

CVE-2018-14646

Estado: ModificadaMedia (5.5)—

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.

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 (7)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-14646",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "secalert@redhat.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "[UNKNOWN]",
          "product": "kernel:",
          "versions": [
            {
              "status": "affected",
              "version": "4.15-rc8"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-11-26T19:29:00.247",
  "references": [
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3651",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3666",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3843",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://marc.info/?l=linux-netdev&m=151500466401174&w=2",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3651",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3666",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:3843",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://marc.info/?l=linux-netdev&m=151500466401174&w=2",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "secalert@redhat.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service."
    },
    {
      "lang": "es",
      "value": "El kernel de Linux en versiones anteriores a la 4.15-rc8 era vulnerable a un error de desreferencia de puntero NULL en la función __netlink_ns_capable() en el archivo net/netlink/af_netlink.c. Un atacante local podría explotarlo cuando un espacio de nombres de red con un netnsid se asigne para provocar un kernel de pánico y ataque de denegación de servicio (DoS)."
    }
  ],
  "lastModified": "2026-06-17T01:41:21.897",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C6AEE42C-583E-4CF3-B7F5-281021632835",
              "versionEndIncluding": "4.14"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B6EF6556-06A6-4700-B61F-533167096BEF"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "69A04496-EA26-42E0-A553-413BF2A78AD7"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "14E8986E-B317-40EA-B0B5-5D2922D2AF5B"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EBC4657A-0239-47DF-B582-87D8DFA69439"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0E1F48A9-9185-4554-9265-22CEC01D18FD"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "639D2465-65E0-40E2-B7A8-BEA9E221DE54"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:4.15:rc7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A282AD0B-2D63-4F05-8F89-109A0975B423"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A4E9DD8A-A68B-4A69-8B01-BFF92A2020A8"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BF77CDCF-B9C9-427D-B2BF-36650FB2148C"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B76AA310-FEC7-497F-AF04-C3EC1E76C4CC"
            },
            {
              "criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}