cve-2021-47306
Vulnerability from cvelistv5
Published
2024-05-21 14:35
Modified
2024-12-19 07:39
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fddi: fix UAF in fza_probe fp is netdev private data and it cannot be used after free_netdev() call. Using fp after free_netdev() can cause UAF bug. Fix it by moving free_netdev() after error message. TURBOchannel adapter")
Impacted products
Vendor Product Version
Linux Linux Version: 4.20
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47306",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-05-28T15:52:18.778665Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:14:18.861Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:08.444Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/fddi/defza.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "04b06716838bfc26742dbed3ae1d3697fe5317ee",
              "status": "affected",
              "version": "61414f5ec9834df8aa4f55c90de16b71a3d6ca8d",
              "versionType": "git"
            },
            {
              "lessThan": "f33605908a9b6063525e9f68e62d739948c5fccf",
              "status": "affected",
              "version": "61414f5ec9834df8aa4f55c90de16b71a3d6ca8d",
              "versionType": "git"
            },
            {
              "lessThan": "bdfbb51f7a437ae8ea91317a5c133ec13adf3c47",
              "status": "affected",
              "version": "61414f5ec9834df8aa4f55c90de16b71a3d6ca8d",
              "versionType": "git"
            },
            {
              "lessThan": "deb7178eb940e2c5caca1b1db084a69b2e59b4c9",
              "status": "affected",
              "version": "61414f5ec9834df8aa4f55c90de16b71a3d6ca8d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/fddi/defza.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "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"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fddi: fix UAF in fza_probe\n\nfp is netdev private data and it cannot be\nused after free_netdev() call. Using fp after free_netdev()\ncan cause UAF bug. Fix it by moving free_netdev() after error message.\n\nTURBOchannel adapter\")"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T07:39:23.760Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf"
        },
        {
          "url": "https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47"
        },
        {
          "url": "https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9"
        }
      ],
      "title": "net: fddi: fix UAF in fza_probe",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47306",
    "datePublished": "2024-05-21T14:35:26.005Z",
    "dateReserved": "2024-05-21T13:27:52.133Z",
    "dateUpdated": "2024-12-19T07:39:23.760Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47306\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:18.250\",\"lastModified\":\"2024-11-21T06:35:50.530\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: fddi: fix UAF in fza_probe\\n\\nfp is netdev private data and it cannot be\\nused after free_netdev() call. Using fp after free_netdev()\\ncan cause UAF bug. Fix it by moving free_netdev() after error message.\\n\\nTURBOchannel adapter\\\")\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: fddi: corrige UAF en fza_probe fp son datos privados de netdev y no se pueden usar despu\u00e9s de la llamada a free_netdev(). Usar fp despu\u00e9s de free_netdev() puede causar un error UAF. Solucionadlo moviendo free_netdev() despu\u00e9s del mensaje de error. Adaptador de canal TURBO\\\")\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/04b06716838bfc26742dbed3ae1d3697fe5317ee\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/bdfbb51f7a437ae8ea91317a5c133ec13adf3c47\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/deb7178eb940e2c5caca1b1db084a69b2e59b4c9\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/f33605908a9b6063525e9f68e62d739948c5fccf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.