CVE-2023-52477

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-52477
In the Linux kernel, the following vulnerability has been resolved: usb: hub: Guard against accesses to uninitialized BOS descriptors Many functions in drivers/usb/core/hub.c and drivers/usb/core/hub.h access fields inside udev->bos without checking if it was allocated and initialized. If usb_get_bos_descriptor() fails for whatever reason, udev->bos will be NULL and those accesses will result in a crash: BUG: kernel NULL pointer dereference, address: 0000000000000018 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 5 PID: 17818 Comm: kworker/5:1 Tainted: G W 5.15.108-18910-gab0e1cb584e1 #1 <HASH:1f9e 1> Hardware name: Google Kindred/Kindred, BIOS Google_Kindred.12672.413.0 02/03/2021 Workqueue: usb_hub_wq hub_event RIP: 0010:hub_port_reset+0x193/0x788 Code: 89 f7 e8 20 f7 15 00 48 8b 43 08 80 b8 96 03 00 00 03 75 36 0f b7 88 92 03 00 00 81 f9 10 03 00 00 72 27 48 8b 80 a8 03 00 00 <48> 83 78 18 00 74 19 48 89 df 48 8b 75 b0 ba 02 00 00 00 4c 89 e9 RSP: 0018:ffffab740c53fcf8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffa1bc5f678000 RCX: 0000000000000310 RDX: fffffffffffffdff RSI: 0000000000000286 RDI: ffffa1be9655b840 RBP: ffffab740c53fd70 R08: 00001b7d5edaa20c R09: ffffffffb005e060 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffffab740c53fd3e R14: 0000000000000032 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffffa1be96540000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000022e80c005 CR4: 00000000003706e0 Call Trace: hub_event+0x73f/0x156e ? hub_activate+0x5b7/0x68f process_one_work+0x1a2/0x487 worker_thread+0x11a/0x288 kthread+0x13a/0x152 ? process_one_work+0x487/0x487 ? kthread_associate_blkcg+0x70/0x70 ret_from_fork+0x1f/0x30 Fall back to a default behavior if the BOS descriptor isn't accessible and skip all the functionalities that depend on it: LPM support checks, Super Speed capabilitiy checks, U1/U2 states setup.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 Patch
https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c Patch
https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b Patch
https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 Patch
https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d Patch
https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 Patch
https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee Patch
https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 Patch
https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 Patch
https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c Patch
https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b Patch
https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 Patch
https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d Patch
https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 Patch
https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee Patch
https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:*
History

09 Dec 2024, 18:39

Type Values Removed Values Added
CWE CWE-476
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
First Time Linux linux Kernel
Linux
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 - () https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 - Patch
References () https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c - () https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c - Patch
References () https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b - () https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b - Patch
References () https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 - () https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 - Patch
References () https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d - () https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d - Patch
References () https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 - () https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 - Patch
References () https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee - () https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee - Patch
References () https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 - () https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 - Patch

21 Nov 2024, 08:39

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 - () https://git.kernel.org/stable/c/136f69a04e71ba3458d137aec3bb2ce1232c0289 -
References () https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c - () https://git.kernel.org/stable/c/241f230324337ed5eae3846a554fb6d15169872c -
References () https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b - () https://git.kernel.org/stable/c/528f0ba9f7a4bc1b61c9b6eb591ff97ca37cac6b -
References () https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 - () https://git.kernel.org/stable/c/6ad3e9fd3632106696692232bf7ff88b9f7e1bc3 -
References () https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d - () https://git.kernel.org/stable/c/8e7346bfea56453e31b7421c1c17ca2fb9ed613d -
References () https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 - () https://git.kernel.org/stable/c/c64e4dca9aefd232b17ac4c779b608b286654e81 -
References () https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee - () https://git.kernel.org/stable/c/f74a7afc224acd5e922c7a2e52244d891bbe44ee -
References () https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 - () https://git.kernel.org/stable/c/fb9895ab9533534335fa83d70344b397ac862c81 -
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: hub: protege contra accesos a descriptores BOS no inicializados Muchas funciones en drivers/usb/core/hub.c y drivers/usb/core/hub.h acceden a los campos dentro de udev- &gt;bos sin verificar si fue asignado e inicializado. Si usb_get_bos_descriptor() falla por cualquier motivo, udev-&gt;bos será NULL y esos accesos resultarán en un bloqueo: ERROR: desreferencia del puntero NULL del kernel, dirección: 0000000000000018 PGD 0 P4D 0 Vaya: 0000 [#1] CPU PREEMPT SMP NOPTI : 5 PID: 17818 Comm: kworker/5:1 Tainted: GW 5.15.108-18910-gab0e1cb584e1 #1 Nombre de hardware: Google Kindred/Kindred, BIOS Google_Kindred.12672.413.0 03/02/2021 Cola de trabajo : usb_hub_wq hub_event RIP: 0010:hub_port_reset+0x193/0x788 Código: 89 f7 e8 20 f7 15 00 48 8b 43 08 80 b8 96 03 00 00 03 75 36 0f b7 88 92 03 00 00 81 f9 10 03 00 00 72 27 48 8b 80 a8 03 00 00 &lt;48&gt; 83 78 18 00 74 19 48 89 df 48 8b 75 b0 ba 02 00 00 00 4c 89 e9 RSP: 0018:ffffab740c53fcf8 EFLAGS: 00010246 RAX: 000000 0000000000 RBX: ffffa1bc5f678000 RCX: 0000000000000310 RDX: ffffffffffffdff RSI: 0000000000000286 RDI: ffffa1be9655b840 RBP: ffffab740c53fd70 R08: 00001b7d5edaa20c R09: ffffffffb005e060 R10: 0000000000000001 R11: 00000000 00000000 R12: 0000000000000000 R13: ffffab740c53fd3e R14: 0000000000000032 R15: 00000000000000000 FS: 0000000000000000(0000) GS:ffffa1be965 40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000018 CR3: 000000022e80c005 CR4: 00000000003706e0 Seguimiento de llamadas: hub_event+0x73f/0x156e ? hub_activate+0x5b7/0x68f proceso_one_work+0x1a2/0x487 trabajador_thread+0x11a/0x288 kthread+0x13a/0x152 ? proceso_one_work+0x487/0x487? kthread_associate_blkcg+0x70/0x70 ret_from_fork+0x1f/0x30 Vuelva a un comportamiento predeterminado si no se puede acceder al descriptor BOS y omita todas las funcionalidades que dependen de él: comprobaciones de compatibilidad con LPM, comprobaciones de capacidad de supervelocidad, configuración de estados U1/U2.

29 Feb 2024, 06:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-02-29 06:15

Updated : 2024-12-09 18:39

NVD link : CVE-2023-52477

Mitre link : CVE-2023-52477

CVE.ORG link : CVE-2023-52477

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-476

NULL Pointer Dereference