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CVE-2024-42114

4.4 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: restrict NL80211_ATTR_TXQ_QUANTUM values syzbot is able to trigger softlockups, setting NL80211_ATTR_TXQ_QUANTU…

Published Jul 30, 2024CWE-667EPSS 0.17%

Overview

CVE-2024-42114 is a medium-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. 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: cfg80211: restrict NL80211_ATTR_TXQ_QUANTUM values

syzbot is able to trigger softlockups, setting NL80211_ATTR_TXQ_QUANTUM

to 2^31.

We had a similar issue in sch_fq, fixed with commit

d9e15a273306 ("pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM")

watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [kworker/1:0:24]

Modules linked in:

irq event stamp: 131135

hardirqs last enabled at (131134): [<ffff80008ae8778c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]

hardirqs last enabled at (131134): [<ffff80008ae8778c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95

hardirqs last disabled at (131135): [<ffff80008ae85378>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]

hardirqs last disabled at (131135): [<ffff80008ae85378>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551

softirqs last enabled at (125892): [<ffff80008907e82c>] neigh_hh_init net/co

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/33ac5a4eb3d4bea2146658f1b6d1fa86d62d2b22Refgit.kernel.org/stable/c/3fc06f6d142d2840735543216a60d0a8c345bdecRefgit.kernel.org/stable/c/80ac0cc9c0bef984e29637b1efa93d7214b42f53Refgit.kernel.org/stable/c/8a3ac7fb36962c34698f884bd697938054ff2afaRefgit.kernel.org/stable/c/d1cba2ea8121e7fdbe1328cea782876b1dd80993Refgit.kernel.org/stable/c/e87c2f098f52aa2fe20258a5bb1738d6a74e9ed7Refgit.kernel.org/stable/c/d1cba2ea8121e7fdbe1328cea782876b1dd80993Refgit.kernel.org/stable/c/e87c2f098f52aa2fe20258a5bb1738d6a74e9ed7Reflists.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-2024-42114?

CVE-2024-42114 is a medium-severity vulnerability. It was published on July 30, 2024 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2024-42114?

This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-42114?

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-2024-42114?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42114 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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