‹ Volver al listado

CVE-2018-5873

Estado: ModificadaAlta (7)—PoC
Gravedad7Alta · CVSS 3.1
Probabilidad de explotación0.50 %mayor que el 42 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoDisponiblePrueba de concepto en GitHub (no verificada)

Debido a una condición de carrera al acceder a los archivos en todas las distribuciones de Android de CAF (Android for MSM, Firefox OS for MSM y QRD Android) que utilizan el kernel de Linux antes del parche de seguridad de nivel del 05/07/2018, puede ocurrir una condición de uso de memoria previamente liberada en el kernel.

CVSS

Puntuación base
7
Versión
3.1
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.50 %
Percentil entre todas las CVEs puntuadas
42
Fecha de la puntuación
20/10/2026

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).

Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (2)

Google — AndroidLinux — Linux Kernel

CWE

Referencias

Mostrar las 10 referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-5873",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.9,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.4,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "product-security@qualcomm.com",
      "affectedData": [
        {
          "vendor": "Qualcomm, Inc.",
          "product": "Android for MSM, Firefox OS for MSM, QRD Android",
          "versions": [
            {
              "status": "affected",
              "version": "All Android releases from CAF using the Linux kernel"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-07-06T19:29:01.060",
  "references": [
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073c516ff73557a8f7315066856c04b50383ac34",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "product-security@qualcomm.com"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/073c516ff73557a8f7315066856c04b50383ac34",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "product-security@qualcomm.com"
    },
    {
      "url": "https://source.android.com/security/bulletin/2018-07-01",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "product-security@qualcomm.com"
    },
    {
      "url": "https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?id=34742aaf7cb16c95edba4a7afed6d2c4fa7e434b",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "product-security@qualcomm.com"
    },
    {
      "url": "https://www.codeaurora.org/security-bulletin/2018/07/02/july-2018-code-aurora-security-bulletin",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "product-security@qualcomm.com"
    },
    {
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=073c516ff73557a8f7315066856c04b50383ac34",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/torvalds/linux/commit/073c516ff73557a8f7315066856c04b50383ac34",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://source.android.com/security/bulletin/2018-07-01",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://source.codeaurora.org/quic/la/kernel/msm-4.9/commit/?id=34742aaf7cb16c95edba4a7afed6d2c4fa7e434b",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.codeaurora.org/security-bulletin/2018/07/02/july-2018-code-aurora-security-bulletin",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        },
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the __ns_get_path function in fs/nsfs.c in the Linux kernel before 4.11. Due to a race condition when accessing files, a Use After Free condition can occur. This also affects all Android releases from CAF using the Linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-07-05."
    },
    {
      "lang": "es",
      "value": "Debido a una condición de carrera al acceder a los archivos en todas las distribuciones de Android de CAF (Android for MSM, Firefox OS for MSM y QRD Android) que utilizan el kernel de Linux antes del parche de seguridad de nivel del 05/07/2018, puede ocurrir una condición de uso de memoria previamente liberada en el kernel."
    }
  ],
  "lastModified": "2026-06-17T02:00:56.407",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F71F6650-13B4-486F-80AC-20D871806D44",
              "versionEndExcluding": "4.1.50",
              "versionStartIncluding": "3.19"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C0E70F51-89D3-49B7-B9ED-84B7BA7C348A",
              "versionEndExcluding": "4.4.116",
              "versionStartIncluding": "4.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9C29059A-15D9-49B9-91E3-69C7231D3B9E",
              "versionEndExcluding": "4.9.82",
              "versionStartIncluding": "4.5"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28FFE753-2608-40BE-A218-483B3D8C0241",
              "versionEndExcluding": "4.11",
              "versionStartIncluding": "4.10"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "product-security@qualcomm.com"
}