cve-2024-26903
Vulnerability from cvelistv5
Published
2024-04-17 10:27
Modified
2024-11-05 09:17
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Bluetooth: rfcomm: Fix null-ptr-deref in rfcomm_check_security
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2535b848fa0f42ddff3e5255cf5e742c9b77bb26Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/369f419c097e82407dd429a202cde9a73d3ae29bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3ead59bafad05f2967ae2438c0528d53244cfde5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/567c0411dc3b424fc7bd1e6109726d7ba32d4f73Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f369efd9d963c1f711a06c9b8baf9f5ce616d85Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5f9fe302dd3a9bbc50f4888464c1773f45166bfdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/81d7d920a22fd58ef9aedb1bd0a68ee32bd23e96Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8d1753973f598531baaa2c1033cf7f7b5bb004b0Patch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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Comparando los paquetes de un proceso normal de conexi\u00f3n y desconexi\u00f3n con el caso de prueba que desencaden\u00f3 un informe KASAN. Analizamos la causa de este error de la siguiente manera: 1. En los paquetes capturados durante una conexi\u00f3n normal, el host env\u00eda un paquete `HCI_CMD` del tipo `Read Encryption Key Size` (c\u00f3digo de operaci\u00f3n de comando: 0x1408) al controlador para consultar la longitud. de clave de cifrado. Despu\u00e9s de recibir este paquete, el controlador responde inmediatamente con un paquete de comando completo (c\u00f3digo de evento: 0x0e) para devolver el tama\u00f1o de la clave de cifrado. 2. En nuestro caso de prueba fuzz, el tiempo de respuesta del controlador a este paquete se retras\u00f3 hasta un punto inesperado: despu\u00e9s de que las capas RFCOMM y L2CAP se desconectaran, pero antes de que se desconectara la capa HCI. 3. 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