CVE-2024-26693

5.5 · MEDIUM

Published Apr 3, 2024 linux EPSS 0.24% (15th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-26693 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 3, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, 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: iwlwifi: mvm: fix a crash when we run out of stations

A DoS tool that injects loads of authentication frames made our AP

crash. The iwl_mvm_is_dup() function couldn't find the per-queue

dup_data which was not allocated.

The root cause for that is that we ran out of stations in the firmware

and we didn't really add the station to the firmware, yet we didn't

return an error to mac80211.

Mac80211 was thinking that we have the station and because of that,

sta_info::uploaded was set to 1. This allowed

ieee80211_find_sta_by_ifaddr() to return a valid station object, but

that ieee80211_sta didn't have any iwl_mvm_sta object initialized and

that caused the crash mentioned earlier when we got Rx on that station.

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 6.4, < 6.6.18	Affected

References

Ref git.kernel.org/stable/c/00f4eb31b8193f6070ce24df636883f9c104ca95 Ref git.kernel.org/stable/c/b7198383ef2debe748118996f627452281cf27d7 Ref git.kernel.org/stable/c/c12f0f4d4caf23b1bfdc2602b6b70d56bdcd6aa7 Ref git.kernel.org/stable/c/00f4eb31b8193f6070ce24df636883f9c104ca95 Ref git.kernel.org/stable/c/b7198383ef2debe748118996f627452281cf27d7 Ref git.kernel.org/stable/c/c12f0f4d4caf23b1bfdc2602b6b70d56bdcd6aa7

Frequently Asked Questions

What is CVE-2024-26693?

CVE-2024-26693 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 3, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26693?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2024-26693?

How can CyberStrike help with CVE-2024-26693?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26693 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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