fkie_cve-2022-48832
Vulnerability from fkie_nvd
Published
2024-07-16 12:15
Modified
2025-10-07 20:04
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: audit: don't deref the syscall args when checking the openat2 open_how::flags As reported by Jeff, dereferencing the openat2 syscall argument in audit_match_perm() to obtain the open_how::flags can result in an oops/page-fault. This patch fixes this by using the open_how struct that we store in the audit_context with audit_openat2_how(). Independent of this patch, Richard Guy Briggs posted a similar patch to the audit mailing list roughly 40 minutes after this patch was posted.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620cPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 5.17
linux linux_kernel 5.17
linux linux_kernel 5.17


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "679523BA-1392-404B-AB85-F5A5408B1ECC",
              "versionEndExcluding": "5.16.10",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: don\u0027t deref the syscall args when checking the openat2 open_how::flags\n\nAs reported by Jeff, dereferencing the openat2 syscall argument in\naudit_match_perm() to obtain the open_how::flags can result in an\noops/page-fault.  This patch fixes this by using the open_how struct\nthat we store in the audit_context with audit_openat2_how().\n\nIndependent of this patch, Richard Guy Briggs posted a similar patch\nto the audit mailing list roughly 40 minutes after this patch was\nposted."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: auditor\u00eda: no desreferenciar los argumentos de syscall al verificar openat2 open_how::flags Seg\u00fan lo informado por Jeff, desreferenciar el argumento de openat2 syscall en audit_match_perm() para obtener open_how::flags puede resultar en un error de p\u00e1gina/ups. Este parche soluciona este problema utilizando la estructura open_how que almacenamos en audit_context con audit_openat2_how(). Independientemente de este parche, Richard Guy Briggs public\u00f3 un parche similar en la lista de correo de auditor\u00eda aproximadamente 40 minutos despu\u00e9s de la publicaci\u00f3n de este parche."
    }
  ],
  "id": "CVE-2022-48832",
  "lastModified": "2025-10-07T20:04:46.153",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-16T12:15:06.750",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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