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CVE-2022-40307

Estado: ModificadaMedia (4.7)—

Se ha detectado un problema en el kernel de Linux versiones hasta 5.19.8. El archivo drivers/firmware/efi/capsule-loader.c presenta una condición de carrera con un uso de memoria previamente liberada resultante

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 (2)

Debian — Debian LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-40307",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-09-09T05:15:07.877",
  "references": [
    {
      "url": "https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c95",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html",
      "tags": [
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        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.debian.org/security/2022/dsa-5257",
      "tags": [
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      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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      "tags": [
        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-362"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en el kernel de Linux versiones hasta 5.19.8. El archivo drivers/firmware/efi/capsule-loader.c presenta una condición de carrera con un uso de memoria previamente liberada resultante"
    }
  ],
  "lastModified": "2026-06-17T05:01:17.080",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "matchCriteriaId": "5EB1A769-EB57-4441-A657-8E0EBC5243C1",
              "versionEndIncluding": "5.19.8"
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          "operator": "OR"
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}