FKIE_CVE-2021-47310

Vulnerability from fkie_nvd - Published: 2024-05-21 15:15 - Updated: 2026-06-17 04:17
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: ti: fix UAF in tlan_remove_one priv is netdev private data and it cannot be used after free_netdev() call. Using priv 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/0336f8ffece62f882ab3012820965a786a983f70Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0336f8ffece62f882ab3012820965a786a983f70Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0538b0ab7d2c396e385694228c7cdcd2d2c514e9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/93efab0ef2a607fff9166d447c4035f98b5db342Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0a817b2d308fac090a05cbbe80988e073ac5193Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a18a8d9cfbb112ad72e625372849adc3986fd6bfPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b7e5563f2a7862a9e4796abb9908b092f677e3c1Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c263ae8c7e4c482387de5e6c89e213f8173fe8b6Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405Patch
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 *
linux linux_kernel 5.14
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/tlan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            },
            {
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            },
            {
              "lessThan": "f2a062fcfe1d6f1b0a86fa76ae21c277d65f4405",
              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            },
            {
              "lessThan": "93efab0ef2a607fff9166d447c4035f98b5db342",
              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            },
            {
              "lessThan": "0336f8ffece62f882ab3012820965a786a983f70",
              "status": "affected",
              "version": "1e0a8b13d35510e711fdf72e9a3e30bcb2bd49fa",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/ti/tlan.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.10"
            },
            {
              "lessThan": "3.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.277",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.277",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.241",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.199",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.135",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.13.*",
              "status": "unaffected",
              "version": "5.13.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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            },
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              "vulnerable": true
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          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ti: fix UAF in tlan_remove_one\n\npriv is netdev private data and it cannot be\nused after free_netdev() call. Using priv 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: ti: corrige UAF en tlan_remove_one priv son datos privados de netdev y no se pueden usar despu\u00e9s de la llamada free_netdev(). Usar priv despu\u00e9s de free_netdev() puede causar un error en UAF. Solucionarlo moviendo free_netdev() al final de la funci\u00f3n."
    }
  ],
  "id": "CVE-2021-47310",
  "lastModified": "2026-06-17T04:17:09.807",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-47310",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-05-21T15:35:38.649783Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-05-21T15:15:18.520",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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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.