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CVE-2024-43841

3.3 · LOW

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 th…

Published Aug 17, 2024EPSS 0.21%

Overview

CVE-2024-43841 is a low-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/05c4488a0e446c6ccde9f22b573950665e1cd414Refgit.kernel.org/stable/c/36e92b5edc8e0daa18e9325674313802ce3fbc29Refgit.kernel.org/stable/c/416d3c1538df005195721a200b0371d39636e05dRefgit.kernel.org/stable/c/93e898a264b4e0a475552ba9f99a016eb43ef942Refgit.kernel.org/stable/c/994fc2164a03200c3bf42fb45b3d49d9d6d33a4dRefgit.kernel.org/stable/c/b5d14b0c6716fad7f0c94ac6e1d6f60a49f985c7Refgit.kernel.org/stable/c/d3cc85a10abc8eae48988336cdd3689ab92581b3Reflists.debian.org/debian-lts-announce/2024/10/msg00003.htmlReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-43841?

CVE-2024-43841 is a low-severity vulnerability. It was published on August 17, 2024 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2024-43841?

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-43841?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-43841?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-43841 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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