FKIE_CVE-2024-42242

Vulnerability from fkie_nvd - Published: 2024-08-07 16:15 - Updated: 2024-08-08 14:53
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: mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE blk_queue_max_segment_size() ensured: if (max_size < PAGE_SIZE) max_size = PAGE_SIZE; whereas: blk_validate_limits() makes it an error: if (WARN_ON_ONCE(lim->max_segment_size < PAGE_SIZE)) return -EINVAL; The change from one to the other, exposed sdhci which was setting maximum segment size too low in some circumstances. Fix the maximum segment size when it is too low.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63d20a94f24fc1cbaf44d0e7c0e0a8077fde0aefPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf78b1accef46efd9b624967cb74ae8d3c215a2bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0F5C3789-472B-40EC-9D2A-48169EDB592B",
              "versionEndExcluding": "6.9.10",
              "versionStartIncluding": "6.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE\n\nblk_queue_max_segment_size() ensured:\n\n\tif (max_size \u003c PAGE_SIZE)\n\t\tmax_size = PAGE_SIZE;\n\nwhereas:\n\nblk_validate_limits() makes it an error:\n\n\tif (WARN_ON_ONCE(lim-\u003emax_segment_size \u003c PAGE_SIZE))\n\t\treturn -EINVAL;\n\nThe change from one to the other, exposed sdhci which was setting maximum\nsegment size too low in some circumstances.\n\nFix the maximum segment size when it is too low."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: sdhci: Correcci\u00f3n max_seg_size para 64KiB PAGE_SIZE blk_queue_max_segment_size() asegurado: if (max_size \u0026lt; PAGE_SIZE) max_size = PAGE_SIZE; mientras que: blk_validate_limits() lo convierte en un error: if (WARN_ON_ONCE(lim-\u0026gt;max_segment_size \u0026lt; PAGE_SIZE)) return -EINVAL; El cambio de uno a otro expuso a sdhci, que estaba estableciendo un tama\u00f1o de segmento m\u00e1ximo demasiado bajo en algunas circunstancias. Fije el tama\u00f1o m\u00e1ximo del segmento cuando sea demasiado bajo."
    }
  ],
  "id": "CVE-2024-42242",
  "lastModified": "2024-08-08T14:53:42.797",
  "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": "2024-08-07T16:15:47.013",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/63d20a94f24fc1cbaf44d0e7c0e0a8077fde0aef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bf78b1accef46efd9b624967cb74ae8d3c215a2b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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