vulnerability
Debian: CVE-2024-43841: linux, linux-6.1 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:S/C:N/I:P/A:N) | Aug 17, 2024 | Sep 2, 2024 | Jan 30, 2025 |
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.
Solutions
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