fkie_cve-2022-49138
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-02-26 07:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_event: Ignore multiple conn complete events\n\nWhen one of the three connection complete events is received multiple\ntimes for the same handle, the device is registered multiple times which\nleads to memory corruptions. Therefore, consequent events for a single\nconnection are ignored.\n\nThe conn-\u003estate can hold different values, therefore HCI_CONN_HANDLE_UNSET\nis introduced to identify new connections. To make sure the events do not\ncontain this or another invalid handle HCI_CONN_HANDLE_MAX and checks\nare introduced.\n\nBuglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: Bluetooth: hci_event: Ignorar varios eventos de conexi\u00f3n completa Cuando uno de los tres eventos de conexi\u00f3n completa se recibe varias veces para el mismo identificador, el dispositivo se registra varias veces, lo que provoca corrupciones de memoria. Por lo tanto, se ignoran los eventos consecuentes para una sola conexi\u00f3n. El estado conn-\u0026gt;state puede contener diferentes valores, por lo tanto, se introduce HCI_CONN_HANDLE_UNSET para identificar nuevas conexiones. Para asegurarse de que los eventos no contengan este u otro identificador no v\u00e1lido, se introducen HCI_CONN_HANDLE_MAX y se realizan comprobaciones. Enlace de error: https://bugzilla.kernel.org/show_bug.cgi?id=215497"
    }
  ],
  "id": "CVE-2022-49138",
  "lastModified": "2025-02-26T07:00:51.047",
  "metrics": {},
  "published": "2025-02-26T07:00:51.047",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aa1ca580e3ffe62a2c5ea1c095b609b2943c5269"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5ebaa7c5f6f688959e8d40840b2249ede63b8ed"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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