CVE-2023-53374 (GCVE-0-2023-53374)
Vulnerability from cvelistv5
Published
2025-09-18 13:33
Modified
2025-09-18 13:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early Not calling hci_(dis)connect_cfm before deleting conn referred to by a socket generally results to use-after-free. When cleaning up SCO connections when the parent ACL is deleted too early, use hci_conn_failed to do the connection cleanup properly. We also need to clean up ISO connections in a similar situation when connecting has started but LE Create CIS is not yet sent, so do it too here.
References
Impacted products
Vendor Product Version
Linux Linux Version: ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f
Version: ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f
Version: ca1fd42e7dbfcb34890ffbf1f2f4b356776dab6f
Version: 75e35bd4b7935ceed2aacd82f55940e73bf0b63b
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bluetooth/hci_conn.c"
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          "vendor": "Linux",
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          "programFiles": [
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          "vendor": "Linux",
          "versions": [
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            },
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              "version": "0",
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\n\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\nsocket generally results to use-after-free.\n\nWhen cleaning up SCO connections when the parent ACL is deleted too\nearly, use hci_conn_failed to do the connection cleanup properly.\n\nWe also need to clean up ISO connections in a similar situation when\nconnecting has started but LE Create CIS is not yet sent, so do it too\nhere."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-18T13:33:20.965Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/397d58007532644b35fad746da48c41161f32a57"
        },
        {
          "url": "https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00"
        },
        {
          "url": "https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85"
        }
      ],
      "title": "Bluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53374",
    "datePublished": "2025-09-18T13:33:20.965Z",
    "dateReserved": "2025-09-17T14:54:09.734Z",
    "dateUpdated": "2025-09-18T13:33:20.965Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53374\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-18T14:15:40.037\",\"lastModified\":\"2025-09-19T16:00:27.847\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nBluetooth: hci_conn: fail SCO/ISO via hci_conn_failed if ACL gone early\\n\\nNot calling hci_(dis)connect_cfm before deleting conn referred to by a\\nsocket generally results to use-after-free.\\n\\nWhen cleaning up SCO connections when the parent ACL is deleted too\\nearly, use hci_conn_failed to do the connection cleanup properly.\\n\\nWe also need to clean up ISO connections in a similar situation when\\nconnecting has started but LE Create CIS is not yet sent, so do it too\\nhere.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3344d318337d9dca928fd448e966557ec5063f85\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/397d58007532644b35fad746da48c41161f32a57\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e94b898463a62b72a2a8b75dea8936bf4db78e00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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