fkie_cve-2021-47311
Vulnerability from fkie_nvd
Published
2024-05-21 15:15
Modified
2024-12-26 19:50
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: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833Patch
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 5.14


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: qcom/emac: fix UAF in emac_remove\n\nadpt is netdev private data and it cannot be\nused after free_netdev() call. Using adpt after free_netdev()\ncan cause UAF bug. Fix it by moving free_netdev() at the end of the\nfunction."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: net: qcom/emac: corrige UAF en emac_remove adpt son datos privados de netdev y no se pueden usar despu\u00e9s de la llamada a free_netdev(). Usar adpt despu\u00e9s de free_netdev() puede causar un error en UAF. Solucionadlo moviendo free_netdev() al final de la funci\u00f3n."
    }
  ],
  "id": "CVE-2021-47311",
  "lastModified": "2024-12-26T19:50:44.387",
  "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2024-05-21T15:15:18.590",
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      "source": "nvd@nist.gov",
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}


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