CVE-2024-47747

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-47747
In the Linux kernel, the following vulnerability has been resolved: net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition In the ether3_probe function, a timer is initialized with a callback function ether3_ledoff, bound to &prev(dev)->timer. Once the timer is started, there is a risk of a race condition if the module or device is removed, triggering the ether3_remove function to perform cleanup. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | ether3_ledoff ether3_remove | free_netdev(dev); | put_devic | kfree(dev); | | ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2); | // use dev Fix it by ensuring that the timer is canceled before proceeding with the cleanup in ether3_remove.

7.0 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fd Patch
https://git.kernel.org/stable/c/25d559ed2beec9b34045886100dac46d1ad92eba
https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353 Patch
https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55b Patch
https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741c Patch
https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afd Patch
https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4 Patch
https://git.kernel.org/stable/c/b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9
https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3 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:*:*:*:*:*:*:*:*
History

08 Nov 2024, 16:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/25d559ed2beec9b34045886100dac46d1ad92eba -
  • () https://git.kernel.org/stable/c/b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9 -

22 Oct 2024, 16:11

Type Values Removed Values Added
CVSS v2 : unknown
v3 : 7.5 		v2 : unknown
v3 : 7.0

22 Oct 2024, 15:09

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: seeq: Se corrige la vulnerabilidad de use after free en el controlador ether3 debido a una condición de ejecución En la función ether3_probe, se inicializa un temporizador con una función de devolución de llamada ether3_ledoff, vinculada a &prev(dev)->timer. Una vez que se inicia el temporizador, existe el riesgo de una condición de ejecución si se elimina el módulo o dispositivo, lo que activa la función ether3_remove para realizar la limpieza. La secuencia de operaciones que pueden provocar un error de UAF es la siguiente: CPU0 CPU1 | ether3_ledoff ether3_remove | free_netdev(dev); | put_devic | kfree(dev); | | ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2); | // use dev Corríjalo asegurándose de que el temporizador se cancele antes de continuar con la limpieza en ether3_remove.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fd - () https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fd - Patch
References () https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353 - () https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353 - Patch
References () https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55b - () https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55b - Patch
References () https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741c - () https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741c - Patch
References () https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afd - () https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afd - Patch
References () https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4 - () https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4 - Patch
References () https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3 - () https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3 - Patch

21 Oct 2024, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 13:15

Updated : 2024-11-08 16:15

NVD link : CVE-2024-47747

Mitre link : CVE-2024-47747

CVE.ORG link : CVE-2024-47747

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free