{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linux:infiniband_hfi1_driver:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "99E5D6FB-5CEF-430C-81AC-928A9A01B9C6",
              "versionEndIncluding": "5.9",
              "vulnerable": true
            },
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              "criteria": "cpe:2.3:a:linux:infiniband_hfi1_driver:5.10:rc1:*:*:*:*:*:*",
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          "negate": false,
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un uso de la memoria previamente liberada en el controlador infiniband hfi1 del kernel de Linux en versiones anteriores a 5.10-rc6, en la manera en que el usuario llama una Ioctl despu\u00e9s de abrir el archivo dev y la rama.\u0026#xa0;Un usuario local podr\u00eda usar este fallo para bloquear el sistema"
    }
  ],
  "id": "CVE-2020-27835",
  "lastModified": "2024-11-21T05:21:54.170",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 4.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
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    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 0.8,
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        "source": "nvd@nist.gov",
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  "published": "2021-01-07T18:15:13.137",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1901709"
    },
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    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Primary"
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  ]
}