cve-2021-47236
Vulnerability from cvelistv5
Published
2024-05-21 14:19
Modified
2024-11-04 12:02
Severity ?
Summary
net: cdc_eem: fix tx fixup skb leak
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47236",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:38:01.951930Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-17T17:39:57.883Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:32:07.941Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/usb/cdc_eem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f12554b0ff63",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "14184ec5c958",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "1bcacd6088d6",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "f4e6a7f19c82",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "81de2ed06df8",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "05b2b9f7d24b",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "b4f7a9fc9d09",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            },
            {
              "lessThan": "c3b26fdf1b32",
              "status": "affected",
              "version": "9f722c0978b0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/usb/cdc_eem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.30"
            },
            {
              "lessThan": "2.6.30",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.4.*",
              "status": "unaffected",
              "version": "4.4.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.9.*",
              "status": "unaffected",
              "version": "4.9.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.238",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.196",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.128",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.12.*",
              "status": "unaffected",
              "version": "5.12.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: cdc_eem: fix tx fixup skb leak\n\nwhen usbnet transmit a skb, eem fixup it in eem_tx_fixup(),\nif skb_copy_expand() failed, it return NULL,\nusbnet_start_xmit() will have no chance to free original skb.\n\nfix it by free orginal skb in eem_tx_fixup() first,\nthen check skb clone status, if failed, return NULL to usbnet."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:02:03.125Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65"
        },
        {
          "url": "https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e"
        },
        {
          "url": "https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d"
        },
        {
          "url": "https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7"
        }
      ],
      "title": "net: cdc_eem: fix tx fixup skb leak",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47236",
    "datePublished": "2024-05-21T14:19:37.724Z",
    "dateReserved": "2024-04-10T18:59:19.531Z",
    "dateUpdated": "2024-11-04T12:02:03.125Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47236\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-21T15:15:12.857\",\"lastModified\":\"2024-05-21T16:54:26.047\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: cdc_eem: fix tx fixup skb leak\\n\\nwhen usbnet transmit a skb, eem fixup it in eem_tx_fixup(),\\nif skb_copy_expand() failed, it return NULL,\\nusbnet_start_xmit() will have no chance to free original skb.\\n\\nfix it by free orginal skb in eem_tx_fixup() first,\\nthen check skb clone status, if failed, return NULL to usbnet.\"},{\"lang\":\"es\",\"value\":\" En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: cdc_eem: corrige la fuga de skb de reparaci\u00f3n de tx cuando usbnet transmite un skb, eem lo repara en eem_tx_fixup(), si skb_copy_expand() falla, devuelve NULL, usbnet_start_xmit() No tendr\u00e1  posibilidad de liberar el skb original. solucionelo primero con skb original gratuito en eem_tx_fixup(), luego verifique el estado del clon de skb, si falla, devuelva NULL a usbnet.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/05b2b9f7d24b5663d9b47427fe1555bdafd3ea02\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/14184ec5c958b589ba934da7363a2877879204df\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1bcacd6088d61c0ac6a990d87975600a81f3247e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/81de2ed06df8b5451e050fe6a318af3263dbff3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4f7a9fc9d094c0c4a66f2ad7c37b1dbe9e78f88\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c3b26fdf1b32f91c7a3bc743384b4a298ab53ad7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f12554b0ff639e74612cc01b3b4a049e098d2d65\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4e6a7f19c82f39b1803e91c54718f0d7143767d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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.