fkie_cve-2024-43841
Vulnerability from fkie_nvd
Published
2024-08-17 10:15
Modified
2024-10-29 16:27
Severity ?
Summary
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.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: avoid reporting connection success with wrong SSID\n\nWhen user issues a connection with a different SSID than the one\nvirt_wifi has advertised, the __cfg80211_connect_result() will\ntrigger the warning: WARN_ON(bss_not_found).\n\nThe issue is because the connection code in virt_wifi does not\ncheck the SSID from user space (it only checks the BSSID), and\nvirt_wifi will call cfg80211_connect_result() with WLAN_STATUS_SUCCESS\neven if the SSID is different from the one virt_wifi has advertised.\nEventually cfg80211 won\u0027t be able to find the cfg80211_bss and generate\nthe warning.\n\nFixed it by checking the SSID (from user space) in the connection code."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: virt_wifi: evita informar el \u00e9xito de la conexi\u00f3n con un SSID incorrecto Cuando el usuario emite una conexi\u00f3n con un SSID diferente al que virt_wifi ha anunciado, __cfg80211_connect_result() activar\u00e1 la advertencia: WARN_ON( bss_not_found). El problema se debe a que el c\u00f3digo de conexi\u00f3n en virt_wifi no verifica el SSID desde el espacio del usuario (solo verifica el BSSID), y virt_wifi llamar\u00e1 a cfg80211_connect_result() con WLAN_STATUS_SUCCESS incluso si el SSID es diferente del que virt_wifi ha anunciado. Eventualmente, cfg80211 no podr\u00e1 encontrar cfg80211_bss y generar la advertencia. Se solucion\u00f3 verificando el SSID (del espacio de usuario) en el c\u00f3digo de conexi\u00f3n."
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"id": "CVE-2024-43841",
"lastModified": "2024-10-29T16:27:14.167",
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"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.