CVE-2023-53395

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer

ACPICA commit 90310989a0790032f5a0140741ff09b545af4bc5

According to the ACPI specification 19.6.134, no argument is required to be passed for ASL Timer instruction. For taking care of no argument, AML_NO_OPERAND_RESOLVE flag is added to ASL Timer instruction opcode.

When ASL timer instruction interpreted by ACPI interpreter, getting error. After adding AML_NO_OPERAND_RESOLVE flag to ASL Timer instruction opcode, issue is not observed.

Detalles técnicos trazas, registros y código del informe original

=============================================================
UBSAN: array-index-out-of-bounds in acpica/dswexec.c:401:12 index -1 is out of range for type 'union acpi_operand_object *[9]'
CPU: 37 PID: 1678 Comm: cat Not tainted
6.0.0-dev-th500-6.0.y-1+bcf8c46459e407-generic-64k
HW name: NVIDIA BIOS v1.1.1-d7acbfc-dirty 12/19/2022 Call trace:
 dump_backtrace+0xe0/0x130
 show_stack+0x20/0x60
 dump_stack_lvl+0x68/0x84
 dump_stack+0x18/0x34
 ubsan_epilogue+0x10/0x50
 __ubsan_handle_out_of_bounds+0x80/0x90
 acpi_ds_exec_end_op+0x1bc/0x6d8
 acpi_ps_parse_loop+0x57c/0x618
 acpi_ps_parse_aml+0x1e0/0x4b4
 acpi_ps_execute_method+0x24c/0x2b8
 acpi_ns_evaluate+0x3a8/0x4bc
 acpi_evaluate_object+0x15c/0x37c
 acpi_evaluate_integer+0x54/0x15c
 show_power+0x8c/0x12c [acpi_power_meter]

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: 0.15%
Percentil entre todas las CVEs puntuadas: 4
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.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1499.004 Application or System Exploitationimpact75 %

Acceso local (AV:L) sin interacción con privilegios de usuario (PR:L). UBSAN detecta out-of-bounds en kernel ACPI, causando DoS. Impacto de disponibilidad (A:H) en el sistema.

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

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-129
CWE-129

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer\n\nACPICA commit 90310989a0790032f5a0140741ff09b545af4bc5\n\nAccording to the ACPI specification 19.6.134, no argument is required to be passed for ASL Timer instruction. For taking care of no argument, AML_NO_OPERAND_RESOLVE flag is added to ASL Timer instruction opcode.\n\nWhen ASL timer instruction interpreted by ACPI interpreter, getting error. After adding AML_NO_OPERAND_RESOLVE flag to ASL Timer instruction opcode, issue is not observed.\n\n=============================================================\nUBSAN: array-index-out-of-bounds in acpica/dswexec.c:401:12 index -1 is out of range for type 'union acpi_operand_object *[9]'\nCPU: 37 PID: 1678 Comm: cat Not tainted\n6.0.0-dev-th500-6.0.y-1+bcf8c46459e407-generic-64k\nHW name: NVIDIA BIOS v1.1.1-d7acbfc-dirty 12/19/2022 Call trace:\n dump_backtrace+0xe0/0x130\n show_stack+0x20/0x60\n dump_stack_lvl+0x68/0x84\n dump_stack+0x18/0x34\n ubsan_epilogue+0x10/0x50\n __ubsan_handle_out_of_bounds+0x80/0x90\n acpi_ds_exec_end_op+0x1bc/0x6d8\n acpi_ps_parse_loop+0x57c/0x618\n acpi_ps_parse_aml+0x1e0/0x4b4\n acpi_ps_execute_method+0x24c/0x2b8\n acpi_ns_evaluate+0x3a8/0x4bc\n acpi_evaluate_object+0x15c/0x37c\n acpi_evaluate_integer+0x54/0x15c\n show_power+0x8c/0x12c [acpi_power_meter]"
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