CVE-2024-53156
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath9k: add range check for conn_rsp_epid in htc_connect_service()
I found the following bug in my fuzzer:
Since this bug has been confirmed to be caused by insufficient verification of conn_rsp_epid, I think it would be appropriate to add a range check for conn_rsp_epid to htc_connect_service() to prevent the bug from occurring.
Detalles técnicos trazas, registros y código del informe original
UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath9k/htc_hst.c:26:51 index 255 is out of range for type 'htc_endpoint [22]' CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.11.0-rc6-dirty #14 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: events request_firmware_work_func Call Trace: <TASK> dump_stack_lvl+0x180/0x1b0 __ubsan_handle_out_of_bounds+0xd4/0x130 htc_issue_send.constprop.0+0x20c/0x230 ? _raw_spin_unlock_irqrestore+0x3c/0x70 ath9k_wmi_cmd+0x41d/0x610 ? mark_held_locks+0x9f/0xe0 ...
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 7.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.24%
- Percentil entre todas las CVEs puntuadas: 14
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1059Command and Scripting Interpreterexecution75 % - Impacto secundario
T1499.004Application or System Exploitationimpact70 %
Vector CVSS AV:L/PR:L/UI:N indica escalada local; array out-of-bounds en driver ath9k permite ejecución de código o DoS. Acceso local sin interacción del usuario.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-129
- CWE-129
Referencias
- https://git.kernel.org/stable/c/3fe99b9690b99606d3743c9961ebee865cfa1ab8
- https://git.kernel.org/stable/c/5f177fb9d01355ac183e65ad8909ea8ef734e0cf
- https://git.kernel.org/stable/c/70eae50d2156cb6e078d0d78809b49bf2f4c7540
- https://git.kernel.org/stable/c/8619593634cbdf5abf43f5714df49b04e4ef09ab
- https://git.kernel.org/stable/c/8965db7fe2e913ee0802b05fc94c6d6aa74e0596
- https://git.kernel.org/stable/c/b6551479daf2bfa80bfd5d9016b02a810e508bfb
- https://git.kernel.org/stable/c/bc981179ab5d1a2715f35e3db4e4bb822bacc849
- https://git.kernel.org/stable/c/c941af142200d975dd3be632aeb490f4cb91dae4
- https://git.kernel.org/stable/c/cb480ae80fd4d0f1ac9e107ce799183beee5124b
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
JSON original (NVD)
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath9k: add range check for conn_rsp_epid in htc_connect_service()\n\nI found the following bug in my fuzzer:\n\n UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath9k/htc_hst.c:26:51\n index 255 is out of range for type 'htc_endpoint [22]'\n CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.11.0-rc6-dirty #14\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: events request_firmware_work_func\n Call Trace:\n <TASK>\n dump_stack_lvl+0x180/0x1b0\n __ubsan_handle_out_of_bounds+0xd4/0x130\n htc_issue_send.constprop.0+0x20c/0x230\n ? _raw_spin_unlock_irqrestore+0x3c/0x70\n ath9k_wmi_cmd+0x41d/0x610\n ? mark_held_locks+0x9f/0xe0\n ...\n\nSince this bug has been confirmed to be caused by insufficient verification\nof conn_rsp_epid, I think it would be appropriate to add a range check for\nconn_rsp_epid to htc_connect_service() to prevent the bug from occurring."
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"value": "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: wifi: ath9k: agregue verificación de rango para conn_rsp_epid en htc_connect_service() Encontré el siguiente error en mi fuzzer: UBSAN: array-index-out-of-bounds in drivers/net/ wireless/ath/ath9k/htc_hst.c:26:51 el índice 255 está fuera del rango para el tipo 'htc_endpoint [22]' CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.11.0-rc6-dirty #14 Nombre del hardware: PC estándar QEMU (i440FX + PIIX, 1996), BIOS 1.15.0- 1 01/04/2014 Cola de trabajo: eventos request_firmware_work_func Seguimiento de llamadas: dump_stack_lvl+0x180/0x1b0 __ubsan_handle_out_of_bounds+0xd4/0x130 htc_issue_send.constprop.0+0x20c/0x230 ? _raw_spin_unlock_irqrestore+0x3c/0x70 ath9k_wmi_cmd+0x41d/0x610 ? mark_held_locks+0x9f/0xe0... Dado que se ha confirmado que este error es causado por una verificación insuficiente de conn_rsp_epid, creo que sería apropiado agregar una verificación de rango para conn_rsp_epid a htc_connect_service() para evitar que ocurra el error."
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