FKIE_CVE-2020-36766

Vulnerability from fkie_nvd - Published: 2023-09-18 09:15 - Updated: 2026-06-17 03:16
Severity
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.
References
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6Release Notes
cve@mitre.orghttps://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570Patch
af854a3a-2127-422b-91ae-364da2661108https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6Release Notes
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570Patch
Impacted products
Vendor Product Version
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1242AC2C-0562-494C-87D2-C588833C8287",
              "versionEndExcluding": "5.8.6",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en el kernel de Linux anterior a 5.8.6. drivers/media/cec/core/cec-api.c pierde un byte de memoria del kernel en hardware espec\u00edfico a usuarios sin privilegios, debido a la asignaci\u00f3n directa de log_addrs con un agujero en la estructura."
    }
  ],
  "id": "CVE-2020-36766",
  "lastModified": "2026-06-17T03:16:10.720",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 3.3,
          "baseSeverity": "LOW",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "version": "3.1"
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        "impactScore": 1.4,
        "source": "nvd@nist.gov",
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        "ssvcData": {
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          "options": [
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            {
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            {
              "technicalImpact": "partial"
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          "role": "CISA Coordinator",
          "timestamp": "2024-09-25T18:00:23.978680Z",
          "version": "2.0.3"
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  "published": "2023-09-18T09:15:07.693",
  "references": [
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      "tags": [
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      "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6"
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      "tags": [
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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