FKIE_CVE-2022-48832

Vulnerability from fkie_nvd - Published: 2024-07-16 12:15 - Updated: 2026-06-17 05:16
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 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/auditsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "310c9ddfdf1f8d3c9834f02175eae79c8b254b6c",
              "status": "affected",
              "version": "1c30e3af8a79260cdba833a719209b01e6b92300",
              "versionType": "git"
            },
            {
              "lessThan": "7a82f89de92aac5a244d3735b2bd162c1147620c",
              "status": "affected",
              "version": "1c30e3af8a79260cdba833a719209b01e6b92300",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/auditsc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.16"
            },
            {
              "lessThan": "5.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "679523BA-1392-404B-AB85-F5A5408B1ECC",
              "versionEndExcluding": "5.16.10",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "7BD5F8D9-54FA-4CB0-B4F0-CB0471FDDB2D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "E6E34B23-78B4-4516-9BD8-61B33F4AC49A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "C030FA3D-03F4-4FB9-9DBF-D08E5CAC51AA",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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": "2026-06-17T05:16:20.003",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-48832",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T16:57:24.239551Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-07-16T12:15:06.750",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/310c9ddfdf1f8d3c9834f02175eae79c8b254b6c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/7a82f89de92aac5a244d3735b2bd162c1147620c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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