cve-2024-46780
Vulnerability from cvelistv5
Published
2024-09-18 07:12
Modified
2024-11-05 09:46
Severity ?
Summary
nilfs2: protect references to superblock parameters exposed in sysfs
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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                "id": "CVE-2024-46780",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Automatable": "no"
                  },
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                    "Technical Impact": "partial"
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                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:38:16.059134Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/nilfs2/sysfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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          "versions": [
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              "version": "0",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: protect references to superblock parameters exposed in sysfs\n\nThe superblock buffers of nilfs2 can not only be overwritten at runtime\nfor modifications/repairs, but they are also regularly swapped, replaced\nduring resizing, and even abandoned when degrading to one side due to\nbacking device issues.  So, accessing them requires mutual exclusion using\nthe reader/writer semaphore \"nilfs-\u003ens_sem\".\n\nSome sysfs attribute show methods read this superblock buffer without the\nnecessary mutual exclusion, which can cause problems with pointer\ndereferencing and memory access, so fix it."
        }
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46780",
    "datePublished": "2024-09-18T07:12:36.736Z",
    "dateReserved": "2024-09-11T15:12:18.276Z",
    "dateUpdated": "2024-11-05T09:46:30.038Z",
    "state": "PUBLISHED"
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So, accessing them requires mutual exclusion using\\nthe reader/writer semaphore \\\"nilfs-\u003ens_sem\\\".\\n\\nSome sysfs attribute show methods read this superblock buffer without the\\nnecessary mutual exclusion, which can cause problems with pointer\\ndereferencing and memory access, so fix it.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nilfs2: protege las referencias a los par\u00e1metros de superbloque expuestos en sysfs Los b\u00faferes de superbloque de nilfs2 no solo se pueden sobrescribir en tiempo de ejecuci\u00f3n para modificaciones/reparaciones, sino que tambi\u00e9n se intercambian regularmente, se reemplazan durante el cambio de tama\u00f1o e incluso se abandonan cuando se degradan a un lado debido a problemas con el dispositivo de respaldo. Por lo tanto, acceder a ellos requiere exclusi\u00f3n mutua utilizando el sem\u00e1foro de lectura/escritura \\\"nilfs-\u0026gt;ns_sem\\\". Algunos m\u00e9todos de demostraci\u00f3n del atributo sysfs leen este b\u00fafer de superbloque sin la exclusi\u00f3n mutua necesaria, lo que puede causar problemas con la desreferenciaci\u00f3n de punteros y el acceso a la memoria, as\u00ed que arr\u00e9glelo.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.17\",\"versionEndExcluding\":\"4.19.322\",\"matchCriteriaId\":\"0DF373BC-D49B-4A5C-944C-E227FDEBDFA9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.284\",\"matchCriteriaId\":\"6265A402-9C3C-438F-BFC5-4194B2568B85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.226\",\"matchCriteriaId\":\"864FC17C-501A-4823-A643-6F35D65D8A97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.167\",\"matchCriteriaId\":\"043405A4-25FE-45D4-A7BB-2A0C3B7D17C1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.110\",\"matchCriteriaId\":\"6B1A95FC-7E7E-428B-BB59-F76640C652AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.51\",\"matchCriteriaId\":\"E4529134-BAC4-4776-840B-304009E181A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.10\",\"matchCriteriaId\":\"ACDEE48C-137A-4731-90D0-A675865E1BED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DEB27E7-30AA-45CC-8934-B89263EF3551\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0005AEF-856E-47EB-BFE4-90C46899394D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"39889A68-6D34-47A6-82FC-CD0BF23D6754\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8383ABF-1457-401F-9B61-EE50F4C61F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"B77A9280-37E6-49AD-B559-5B23A3B1DC3D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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