CVE-2024-43841

In the Linux kernel, the following vulnerability has been resolved: wifi: virt_wifi: avoid reporting connection success with wrong SSID When user issues a connection with a different SSID than the one virt_wifi has advertised, the __cfg80211_connect_result() will trigger the warning: WARN_ON(bss_not_found). The issue is because the connection code in virt_wifi does not check the SSID from user space (it only checks the BSSID), and virt_wifi will call cfg80211_connect_result() with WLAN_STATUS_SUCCESS even if the SSID is different from the one virt_wifi has advertised. Eventually cfg80211 won't be able to find the cfg80211_bss and generate the warning. Fixed it by checking the SSID (from user space) in the connection code.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414	Patch
https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29	Patch
https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d	Patch
https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942	Patch
https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d	Patch
https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7	Patch
https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3	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::::::::

History

29 Oct 2024, 16:27

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 3.3
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CWE		NVD-CWE-noinfo
References	~~() https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414 -~~	() https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414 - Patch
References	~~() https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29 -~~	() https://git.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29 - Patch
References	~~() https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d -~~	() https://git.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05d - Patch
References	~~() https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942 -~~	() https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942 - Patch
References	~~() https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d -~~	() https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d - Patch
References	~~() https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7 -~~	() https://git.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7 - Patch
References	~~() https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3 -~~	() https://git.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3 - Patch

19 Aug 2024, 12:59

Type	Values Removed	Values Added
Summary		(es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: virt_wifi: evita informar el éxito de la conexión con un SSID incorrecto Cuando el usuario emite una conexión con un SSID diferente al que virt_wifi ha anunciado, __cfg80211_connect_result() activará la advertencia: WARN_ON( bss_not_found). El problema se debe a que el código de conexión en virt_wifi no verifica el SSID desde el espacio del usuario (solo verifica el BSSID), y virt_wifi llamará a cfg80211_connect_result() con WLAN_STATUS_SUCCESS incluso si el SSID es diferente del que virt_wifi ha anunciado. Eventualmente, cfg80211 no podrá encontrar cfg80211_bss y generar la advertencia. Se solucionó verificando el SSID (del espacio de usuario) en el código de conexión.

19 Aug 2024, 05:15

Type	Values Removed	Values Added
References		() https://git.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414 - () https://git.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942 - () https://git.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4d -

17 Aug 2024, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-08-17 10:15

Updated : 2024-10-29 16:27

NVD link : CVE-2024-43841

Mitre link : CVE-2024-43841

CVE.ORG link : CVE-2024-43841

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

3.3 /10