fkie_cve-2024-49855
Vulnerability from fkie_nvd
Published
2024-10-21 13:15
Modified
2024-10-22 16:12
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: nbd: fix race between timeout and normal completion If request timetout is handled by nbd_requeue_cmd(), normal completion has to be stopped for avoiding to complete this requeued request, other use-after-free can be triggered. Fix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime make sure that cmd->lock is grabbed for clearing the flag and the requeue.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5236ada8ebbd9e7461f17477357582f5be4f46f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e73b946a379a1dfbb62626af93843bdfb53753dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9a74c3e6c0d686c26ba2aab66d15ddb89dc139ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9c25faf72d780a9c71081710cd48759d61ff6e9bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9ea57c91f03bcad415e1a20113bdb2077bcf990Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.17.15


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: fix race between timeout and normal completion\n\nIf request timetout is handled by nbd_requeue_cmd(), normal completion\nhas to be stopped for avoiding to complete this requeued request, other\nuse-after-free can be triggered.\n\nFix the race by clearing NBD_CMD_INFLIGHT in nbd_requeue_cmd(), meantime\nmake sure that cmd-\u003elock is grabbed for clearing the flag and the\nrequeue."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nbd: se corrige la ejecuci\u00f3n entre el tiempo de espera y la finalizaci\u00f3n normal. Si el tiempo de espera de la solicitud lo maneja nbd_requeue_cmd(), la finalizaci\u00f3n normal debe detenerse para evitar completar esta solicitud en cola; se pueden activar otros use after free. Corrija la ejecuci\u00f3n borrando NBD_CMD_INFLIGHT en nbd_requeue_cmd(); mientras tanto, aseg\u00farese de que cmd-\u0026gt;lock se captura para borrar la bandera y la puesta en cola."
    }
  ],
  "id": "CVE-2024-49855",
  "lastModified": "2024-10-22T16:12:27.030",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  "published": "2024-10-21T13:15:06.270",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-416"
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      "source": "nvd@nist.gov",
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}


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