FKIE_CVE-2021-47336

Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2025-05-12 19:58
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: smackfs: restrict bytes count in smk_set_cipso() Oops, I failed to update subject line. From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso() Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fcaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fcaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4dPatch
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 *
To clipboard 

{
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmackfs: restrict bytes count in smk_set_cipso()\n\nOops, I failed to update subject line.\n\nFrom 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001\nDate: Mon, 12 Apr 2021 22:25:06 +0900\nSubject: [PATCH] smackfs: restrict bytes count in smk_set_cipso()\n\nCommit 7ef4c19d245f3dc2 (\"smackfs: restrict bytes count in smackfs write\nfunctions\") missed that count \u003e SMK_CIPSOMAX check applies to only\nformat == SMK_FIXED24_FMT case."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: smackfs: restringir el recuento de bytes en smk_set_cipso() Oops, no pude actualizar la l\u00ednea de asunto. De 07571157c91b98ce1a4aa70967531e64b78e8346 lunes 17 de septiembre 00:00:00 2001 Fecha: lunes 12 de abril de 2021 22:25:06 +0900 Asunto: [PATCH] smackfs: restringir el recuento de bytes en smk_set_cipso() Confirmaci\u00f3n 7ef4c1 9d245f3dc2 (\"smackfs: restringir el recuento de bytes en smackfs funciones de escritura\") perdi\u00f3 ese recuento \u0026gt; La verificaci\u00f3n SMK_CIPSOMAX se aplica solo al formato == caso SMK_FIXED24_FMT."
    }
  ],
  "id": "CVE-2021-47336",
  "lastModified": "2025-05-12T19:58:43.413",
  "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"
      }
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  "published": "2024-05-21T15:15:20.437",
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      "source": "nvd@nist.gov",
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.