FKIE_CVE-2025-31133

Vulnerability from fkie_nvd - Published: 2025-11-06 19:15 - Updated: 2026-10-07 21:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container's /dev/null) was actually a real /dev/null inode when using the container's /dev/null to mask. This exposes two methods of attack: an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3.
References
security-advisories@github.comhttps://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522Patch
security-advisories@github.comhttps://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66Patch
security-advisories@github.comhttps://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9fPatch
security-advisories@github.comhttps://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64Patch
security-advisories@github.comhttps://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2Mitigation, Patch, Third Party Advisory
Impacted products
Vendor Product Version
linuxfoundation runc *
linuxfoundation runc *
linuxfoundation runc 1.4.0
linuxfoundation runc 1.4.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "runc",
          "vendor": "opencontainers",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.2.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.3.0-rc.1, \u003c 1.3.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 1.4.0-rc.1, \u003c= 1.4.0-rc.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxfoundation:runc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "889E52A1-D7B0-4DC8-BD63-9413A1DD9EEB",
              "versionEndExcluding": "1.2.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:runc:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F3193A96-E882-439B-984E-782315C62F69",
              "versionEndExcluding": "1.3.3",
              "versionStartIncluding": "1.3.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:runc:1.4.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "082E3496-822B-481B-AC2F-DA8DCAFC28FF",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:linuxfoundation:runc:1.4.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "71C62E90-6357-44A4-B582-28B1F1D9B16D",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "runc is a CLI tool for spawning and running containers according to the OCI specification. In versions 1.2.7 and below, 1.3.0-rc.1 through 1.3.1, 1.4.0-rc.1 and 1.4.0-rc.2 files, runc would not perform sufficient verification that the source of the bind-mount (i.e., the container\u0027s /dev/null) was actually a real /dev/null inode when using the container\u0027s /dev/null to mask. This exposes two methods of attack:  an arbitrary mount gadget, leading to host information disclosure, host denial of service, container escape, or a bypassing of maskedPaths. This issue is fixed in versions 1.2.8, 1.3.3 and 1.4.0-rc.3."
    },
    {
      "lang": "es",
      "value": "runc es una herramienta CLI para generar y ejecutar contenedores seg\u00fan la especificaci\u00f3n OCI. En las versiones 1.2.7 e inferiores, 1.3.0-rc.1 hasta 1.3.1, 1.4.0-rc.1 y 1.4.0-rc.2, runc no realizaba una verificaci\u00f3n suficiente de que el origen del bind-mount (es decir, el [SystemPath] del contenedor) era realmente un inodo [SystemPath] real al usar el [SystemPath] del contenedor para enmascarar. Esto expone dos m\u00e9todos de ataque: un gadget de montaje arbitrario, lo que lleva a la revelaci\u00f3n de informaci\u00f3n del host, denegaci\u00f3n de servicio del host, escape del contenedor o una elusi\u00f3n de maskedPaths. Este problema est\u00e1 solucionado en las versiones 1.2.8, 1.3.3 y 1.4.0-rc.3."
    }
  ],
  "id": "CVE-2025-31133",
  "lastModified": "2026-10-07T21:10:00.200",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.1,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "ACTIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-31133",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-11-06T19:03:45.356326Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-11-06T19:15:41.343",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/opencontainers/runc/commit/1a30a8f3d921acbbb6a4bb7e99da2c05f8d48522"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/opencontainers/runc/commit/5d7b2424072449872d1cd0c937f2ca25f418eb66"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/opencontainers/runc/commit/8476df83b534a2522b878c0507b3491def48db9f"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/opencontainers/runc/commit/db19bbed5348847da433faa9d69e9f90192bfa64"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/opencontainers/runc/security/advisories/GHSA-9493-h29p-rfm2"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-61"
        },
        {
          "lang": "en",
          "value": "CWE-363"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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