cve-2021-47459
Vulnerability from cvelistv5
Published
2024-05-22 06:23
Modified
2024-11-04 12:06
Severity ?
Summary
can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586
Impacted products
Vendor Product Version
Linux Linux Version: 5.4
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:39:59.451Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-47459",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:36:14.848678Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:25.941Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/j1939/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a0e47d2833b4",
              "status": "affected",
              "version": "9d71dd0c7009",
              "versionType": "git"
            },
            {
              "lessThan": "864e77771a24",
              "status": "affected",
              "version": "9d71dd0c7009",
              "versionType": "git"
            },
            {
              "lessThan": "6e8811707e2d",
              "status": "affected",
              "version": "9d71dd0c7009",
              "versionType": "git"
            },
            {
              "lessThan": "d9d52a3ebd28",
              "status": "affected",
              "version": "9d71dd0c7009",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/j1939/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.14.*",
              "status": "unaffected",
              "version": "5.14.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv\n\nIt will trigger UAF for rx_kref of j1939_priv as following.\n\n        cpu0                                    cpu1\nj1939_sk_bind(socket0, ndev0, ...)\nj1939_netdev_start\n                                        j1939_sk_bind(socket1, ndev0, ...)\n                                        j1939_netdev_start\nj1939_priv_set\n                                        j1939_priv_get_by_ndev_locked\nj1939_jsk_add\n.....\nj1939_netdev_stop\nkref_put_lock(\u0026priv-\u003erx_kref, ...)\n                                        kref_get(\u0026priv-\u003erx_kref, ...)\n                                        REFCOUNT_WARN(\"addition on 0;...\")\n\n====================================================\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 1 PID: 20874 at lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0\nRIP: 0010:refcount_warn_saturate+0x169/0x1e0\nCall Trace:\n j1939_netdev_start+0x68b/0x920\n j1939_sk_bind+0x426/0xeb0\n ? security_socket_bind+0x83/0xb0\n\nThe rx_kref\u0027s kref_get() and kref_put() should use j1939_netdev_lock to\nprotect."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:06:21.353Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d"
        },
        {
          "url": "https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668"
        },
        {
          "url": "https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586"
        }
      ],
      "title": "can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47459",
    "datePublished": "2024-05-22T06:23:21.061Z",
    "dateReserved": "2024-05-22T06:20:56.197Z",
    "dateUpdated": "2024-11-04T12:06:21.353Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-47459\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-22T07:15:10.863\",\"lastModified\":\"2024-11-21T06:36:11.650\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv\\n\\nIt will trigger UAF for rx_kref of j1939_priv as following.\\n\\n        cpu0                                    cpu1\\nj1939_sk_bind(socket0, ndev0, ...)\\nj1939_netdev_start\\n                                        j1939_sk_bind(socket1, ndev0, ...)\\n                                        j1939_netdev_start\\nj1939_priv_set\\n                                        j1939_priv_get_by_ndev_locked\\nj1939_jsk_add\\n.....\\nj1939_netdev_stop\\nkref_put_lock(\u0026priv-\u003erx_kref, ...)\\n                                        kref_get(\u0026priv-\u003erx_kref, ...)\\n                                        REFCOUNT_WARN(\\\"addition on 0;...\\\")\\n\\n====================================================\\nrefcount_t: addition on 0; use-after-free.\\nWARNING: CPU: 1 PID: 20874 at lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0\\nRIP: 0010:refcount_warn_saturate+0x169/0x1e0\\nCall Trace:\\n j1939_netdev_start+0x68b/0x920\\n j1939_sk_bind+0x426/0xeb0\\n ? security_socket_bind+0x83/0xb0\\n\\nThe rx_kref\u0027s kref_get() and kref_put() should use j1939_netdev_lock to\\nprotect.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: j1939: j1939_netdev_start(): arreglar UAF para rx_kref de j1939_priv Activar\u00e1 UAF para rx_kref de j1939_priv de la siguiente manera. cpu0 cpu1 j1939_sk_bind(socket0, ndev0, ...) j1939_netdev_start j1939_sk_bind(socket1, ndev0, ...) j1939_netdev_start j1939_priv_set j1939_priv_get_by_ndev_locked j1939_jsk_add ..... kref_put_lock(\u0026amp;priv-\u0026gt;rx_kref, ...) kref_get(\u0026amp;priv-\u0026gt;rx_kref , ...) REFCOUNT_WARN(\\\"adici\u00f3n en 0;...\\\") ================================== ==================== refcount_t: suma en 0; use-after-free. ADVERTENCIA: CPU: 1 PID: 20874 en lib/refcount.c:25 refcount_warn_saturate+0x169/0x1e0 RIP: 0010:refcount_warn_saturate+0x169/0x1e0 Seguimiento de llamadas: j1939_netdev_start+0x68b/0x920 j1939_sk_bind+0x426 /0xeb0 ? security_socket_bind+0x83/0xb0 Los kref_get() y kref_put() de rx_kref deben usar j1939_netdev_lock para proteger.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6e8811707e2df0c6ba920f0cad3a3bca7b42132f\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/864e77771a24c877aaf53aee019f78619cbcd668\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/a0e47d2833b4f65e6c799f28c6b636d36b8b936d\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://git.kernel.org/stable/c/d9d52a3ebd284882f5562c88e55991add5d01586\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.