{
  "id": "CVE-2020-25220",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2020-09-10T02:15:11.550",
  "lastModified": "2021-01-20T14:25:46.737",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "The Linux kernel 4.9.x before 4.9.233, 4.14.x before 4.14.194, and 4.19.x before 4.19.140 has a use-after-free because skcd->no_refcnt was not considered during a backport of a CVE-2020-14356 patch. This is related to the cgroups feature."
    },
    {
      "lang": "es",
      "value": "El kernel de Linux versiones 4.9.x anteriores a 4.9.233, versiones 4.14.x  anteriores a 4.14.194 y versiones 4.19.x anteriores a 4.19.140, presenta un uso de la memoria previamente liberada porque skcd-)no_refcnt no fue considerado durante un backport de un parche del CVE-2020-14356. Esto est\u00e1 relacionado con la funcionalidad cgroups"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.2
        },
        "baseSeverity": "HIGH",
        "exploitabilityScore": 3.9,
        "impactScore": 10.0,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "4.9.0",
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              "versionStartIncluding": "4.19",
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              "matchCriteriaId": "0B7FDEEE-BD71-426A-A2A8-F0DF249CDDE2"
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  ],
  "references": [
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1868453",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking",
        "Patch",
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    {
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      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.14.y&id=82fd2138a5ffd7e0d4320cdb669e115ee976a26e",
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    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html",
      "source": "cve@mitre.org",
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    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html",
      "source": "cve@mitre.org",
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    {
      "url": "https://security.netapp.com/advisory/ntap-20201001-0004/",
      "source": "cve@mitre.org",
      "tags": [
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    },
    {
      "url": "https://www.spinics.net/lists/stable/msg405099.html",
      "source": "cve@mitre.org",
      "tags": [
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}