fkie_cve-2025-21772
Vulnerability from fkie_nvd
Published
2025-02-27 03:15
Modified
2025-11-03 20:17
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: partitions: mac: fix handling of bogus partition table Fix several issues in partition probing: - The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded. - If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory. - We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124Patch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.14
linux linux_kernel 6.14


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npartitions: mac: fix handling of bogus partition table\n\nFix several issues in partition probing:\n\n - The bailout for a bad partoffset must use put_dev_sector(), since the\n   preceding read_part_sector() succeeded.\n - If the partition table claims a silly sector size like 0xfff bytes\n   (which results in partition table entries straddling sector boundaries),\n   bail out instead of accessing out-of-bounds memory.\n - We must not assume that the partition table contains proper NUL\n   termination - use strnlen() and strncmp() instead of strlen() and\n   strcmp()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: particiones: mac: se corrige el manejo de la tabla de particiones falsa Corrige varios problemas en el sondeo de particiones: - El rescate para un partoffset incorrecto debe usar put_dev_sector(), ya que el read_part_sector() anterior tuvo \u00e9xito. - Si la tabla de particiones reclama un tama\u00f1o de sector tonto como 0xfff bytes (lo que da como resultado que las entradas de la tabla de particiones se extiendan a ambos lados de los l\u00edmites del sector), salga en lugar de acceder a la memoria fuera de los l\u00edmites. - No debemos asumir que la tabla de particiones contiene la terminaci\u00f3n NUL adecuada: use strnlen() y strncmp() en lugar de strlen() y strcmp()."
    }
  ],
  "id": "CVE-2025-21772",
  "lastModified": "2025-11-03T20:17:17.147",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-27T03:15:17.867",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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