CVE-2024-43841

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < 994fc2164a03200c3bf42fb45b3d49d9d6d33a4daffected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < 05c4488a0e446c6ccde9f22b573950665e1cd414affected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < 93e898a264b4e0a475552ba9f99a016eb43ef942affected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < d3cc85a10abc8eae48988336cdd3689ab92581b3affected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < 36e92b5edc8e0daa18e9325674313802ce3fbc29affected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < 416d3c1538df005195721a200b0371d39636e05daffected
LinuxLinuxc7cdba31ed8b87526db978976392802d3f93110c < b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7affected
LinuxLinux5.0affected
LinuxLinux0 < 5.0unaffected
LinuxLinux5.4.282 <= 5.4.*unaffected
LinuxLinux5.10.224 <= 5.10.*unaffected
LinuxLinux5.15.165 <= 5.15.*unaffected
LinuxLinux6.1.103 <= 6.1.*unaffected
LinuxLinux6.6.44 <= 6.6.*unaffected
LinuxLinux6.10.3 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References