fkie_cve-2024-41086
Vulnerability from fkie_nvd
Published
2024-07-29 16:15
Modified
2025-10-09 18:00
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: bcachefs: Fix sb_field_downgrade validation - bch2_sb_downgrade_validate() wasn't checking for a downgrade entry extending past the end of the superblock section - for_each_downgrade_entry() is used in to_text() and needs to work on malformed input; it also was missing a check for a field extending past the end of the section
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/692aa7a54b2b28d59f24b3bf8250837805484b99Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf920ed92ef24dcd6970c88881cd4700b3acf05bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/692aa7a54b2b28d59f24b3bf8250837805484b99Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bf920ed92ef24dcd6970c88881cd4700b3acf05bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.7


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B1E3189C-38CE-4A4C-A5EA-4399E3C83541",
              "versionEndExcluding": "6.9.8",
              "versionStartIncluding": "6.7.1",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.7:-:*:*:*:*:*:*",
              "matchCriteriaId": "62B55B1B-7D3E-499B-9C42-E9F1EF05A54A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcachefs: Fix sb_field_downgrade validation\n\n- bch2_sb_downgrade_validate() wasn\u0027t checking for a downgrade entry\n  extending past the end of the superblock section\n\n- for_each_downgrade_entry() is used in to_text() and needs to work on\n  malformed input; it also was missing a check for a field extending\n  past the end of the section"
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: bcachefs: corrigi\u00f3 la validaci\u00f3n de sb_field_downgrade - bch2_sb_downgrade_validate() no buscaba una entrada de degradaci\u00f3n que se extendiera m\u00e1s all\u00e1 del final de la secci\u00f3n de superbloque - for_each_downgrade_entry() se usa en to_text() y necesita trabajar con entradas mal formadas; Tambi\u00e9n faltaba una marca para un campo que se extend\u00eda m\u00e1s all\u00e1 del final de la secci\u00f3n."
    }
  ],
  "id": "CVE-2024-41086",
  "lastModified": "2025-10-09T18:00:35.550",
  "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": "2024-07-29T16:15:04.043",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/692aa7a54b2b28d59f24b3bf8250837805484b99"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bf920ed92ef24dcd6970c88881cd4700b3acf05b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/692aa7a54b2b28d59f24b3bf8250837805484b99"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bf920ed92ef24dcd6970c88881cd4700b3acf05b"
    }
  ],
  "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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