CVE-2024-47712

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-47712

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

I

n the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential RCU dereference issue in wilc_parse_join_bss_param In the `wilc_parse_join_bss_param` function, the TSF field of the `ies` structure is accessed after the RCU read-side critical section is unlocked. According to RCU usage rules, this is illegal. Reusing this pointer can lead to unpredictable behavior, including accessing memory that has been updated or causing use-after-free issues. This possible bug was identified using a static analysis tool developed by myself, specifically designed to detect RCU-related issues. To address this, the TSF value is now stored in a local variable `ies_tsf` before the RCU lock is released. The `param->tsf_lo` field is then assigned using this local variable, ensuring that the TSF value is safely accessed.

References
Link Resource
https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5 Patch
https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e Patch
https://git.kernel.org/stable/c/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815
https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8 Patch
https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192 Patch
https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b Patch
https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1 Patch
https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

03 Nov 2025, 23:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html -

03 Nov 2025, 21:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html -

08 Nov 2024, 16:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/5a24cedc243ace5ed7c1016f52a7bfc8f5b07815 -

24 Oct 2024, 14:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-476
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: wilc1000: soluciona un posible problema de desreferencia de RCU en wilc_parse_join_bss_param En la función `wilc_parse_join_bss_param`, se accede al campo TSF de la estructura `ies` después de que se desbloquea la sección crítica del lado de lectura de RCU. Según las reglas de uso de RCU, esto es ilegal. Reutilizar este puntero puede provocar un comportamiento impredecible, incluido el acceso a la memoria que se ha actualizado o causar problemas de use after free. Este posible error se identificó utilizando una herramienta de análisis estático desarrollada por mí, diseñada específicamente para detectar problemas relacionados con RCU. Para solucionarlo, el valor TSF ahora se almacena en una variable local `ies_tsf` antes de que se libere el bloqueo de RCU. Luego, el campo `param->tsf_lo` se asigna utilizando esta variable local, lo que garantiza que se acceda de forma segura al valor TSF.
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5 - () https://git.kernel.org/stable/c/2f944e6255c2fc1c9bd9ee32f6b14ee0b2a51eb5 - Patch
References () https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e - () https://git.kernel.org/stable/c/557418e1704605a81c9e26732449f71b1d40ba1e - Patch
References () https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8 - () https://git.kernel.org/stable/c/6d7c6ae1efb1ff68bc01d79d94fdf0388f86cdd8 - Patch
References () https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192 - () https://git.kernel.org/stable/c/79510414a7626317f13cc9073244ab7a8deb3192 - Patch
References () https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b - () https://git.kernel.org/stable/c/84398204c5df5aaf89453056cf0647cda9664d2b - Patch
References () https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1 - () https://git.kernel.org/stable/c/b040b71d99ee5e17bb7a743dc01cbfcae8908ce1 - Patch
References () https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b - () https://git.kernel.org/stable/c/bf090f4fe935294361eabd9dc5a949fdd77d3d1b - Patch

21 Oct 2024, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-10-21 12:15

Updated : 2025-11-03 23:16

NVD link : CVE-2024-47712

Mitre link : CVE-2024-47712

CVE.ORG link : CVE-2024-47712

JSON object : View

Products Affected

linux

CWE
CWE-476

NULL Pointer Dereference