vulnerability

Debian: CVE-2024-43841: linux, linux-6.1 -- security update

Severity
2
CVSS
(AV:L/AC:L/Au:S/C:N/I:P/A:N)
Published
Aug 17, 2024
Added
Sep 2, 2024
Modified
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

debian-upgrade-linuxdebian-upgrade-linux-6-1
Title
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