CVE-2023-52693

ACPI: video: check for error while searching for backlight device parent

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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

ACPI: video: check for error while searching for backlight device parent

If acpi_get_parent() called in acpi_video_dev_register_backlight()
fails, for example, because acpi_ut_acquire_mutex() fails inside
acpi_get_parent), this can lead to incorrect (uninitialized)
acpi_parent handle being passed to acpi_get_pci_dev() for detecting
the parent pci device.

Check acpi_get_parent() result and set parent device only in case of success.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ACPI: vídeo: comprueba si hay errores al buscar el dispositivo de retroiluminación principal. Si la llamada acpi_get_parent() en acpi_video_dev_register_backlight() fallo, por ejemplo, porque acpi_ut_acquire_mutex() fallo dentro de acpi_get_parent), esto puede provocar que se pase el identificador acpi_parent incorrecto (no inicializado) a acpi_get_pci_dev() para detectar el dispositivo pci principal. Verifique el resultado de acpi_get_parent() y configure el dispositivo principal solo en caso de éxito. Encontrado por el Centro de verificación de Linux (linuxtesting.org) con SVACE.

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-07 CVE Reserved
2024-05-17 CVE Published
2024-05-18 EPSS Updated
2024-09-11 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (11)

URL	Tag	Source
https://git.kernel.org/stable/c/9661e92c10a9775243c1ecb73373528ed8725a10	Vuln. Introduced
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/556f02699d33c1f40b1b31bd25828ce08fa165d8	2024-01-25
https://git.kernel.org/stable/c/1e3a2b9b4039bb4d136dca59fb31e06465e056f3	2024-01-25
https://git.kernel.org/stable/c/c4e1a0ef0b4782854c9b77a333ca912b392bed2f	2024-01-25
https://git.kernel.org/stable/c/3a370502a5681986f9828e43be75ce26c6ab24af	2024-01-25
https://git.kernel.org/stable/c/2124c5bc22948fc4d09a23db4a8acdccc7d21e95	2024-01-25
https://git.kernel.org/stable/c/39af144b6d01d9b40f52e5d773e653957e6c379c	2024-01-25
https://git.kernel.org/stable/c/72884ce4e10417b1233b614bf134da852df0f15f	2024-01-25
https://git.kernel.org/stable/c/ccd45faf4973746c4f30ea41eec864e5cf191099	2023-11-21

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 4.19.306 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 4.19.306"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 5.4.268 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 5.4.268"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 5.10.209 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 5.10.209"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 5.15.148 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 5.15.148"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 6.1.75 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 6.1.75"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 6.6.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 6.6.14"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 6.7.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 6.7.2"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.39 < 6.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.39 < 6.8"		en		Affected