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CVE-2024-47738

3.3 · LOW

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't use rate mask for offchannel TX either Like the commit ab9177d83c04 ("wifi: mac80211: don't use rate mask…

Published Oct 21, 2024EPSS 0.23%

Overview

CVE-2024-47738 is a low-severity vulnerability. It was published on October 21, 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: mac80211: don't use rate mask for offchannel TX either

Like the commit ab9177d83c04 ("wifi: mac80211: don't use rate mask for

scanning"), ignore incorrect settings to avoid no supported rate warning

reported by syzbot.

The syzbot did bisect and found cause is commit 9df66d5b9f45 ("cfg80211:

fix default HE tx bitrate mask in 2G band"), which however corrects

bitmask of HE MCS and recognizes correctly settings of empty legacy rate

plus HE MCS rate instead of returning -EINVAL.

As suggestions [1], follow the change of SCAN TX to consider this case of

offchannel TX as well.

[1] https://lore.kernel.org/linux-wireless/[email protected]/T/#m2ac2a6d2be06a37c9c47a3d8a44b4f647ed4f024

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/3565ef215101ffadb5fe5394c70b1fca51376b25Refgit.kernel.org/stable/c/43897111481b679508711d3ca881c4c6593e9247Refgit.kernel.org/stable/c/aafca50e71dc8f3192a5bfb325135a7908f3ef9eRefgit.kernel.org/stable/c/d54455a3a965feb547711aff7afd2ca5deadb99cRefgit.kernel.org/stable/c/e7a7ef9a0742dbd0818d5b15fba2c5313ace765bReflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-47738?

CVE-2024-47738 is a low-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2024-47738?

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-2024-47738?

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-2024-47738?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-47738 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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