CVEvulnerability
CVE-2024-43841
3.3 LOW
Official page ↗
- Status
- Modified
- Published
- 2024-08-17
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 3.3 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Description
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.
Affected configurations
• linux linux kernel (>= 5.0 < 6.1.103)
• linux linux kernel (>= 6.2 < 6.6.44)
• linux linux kernel (>= 6.7 < 6.10.3)
References
- 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
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html lists.debian.org