CVE-2024-26645

5.5 · MEDIUM

Published Mar 26, 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-2024-26645 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 26, 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:

tracing: Ensure visibility when inserting an element into tracing_map

Running the following two commands in parallel on a multi-processor

AArch64 machine can sporadically produce an unexpected warning about

duplicate histogram entries:

$ while true; do

echo hist:key=id.syscall:val=hitcount > \

/sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/trigger

cat /sys/kernel/debug/tracing/events/raw_syscalls/sys_enter/hist

sleep 0.001

done

$ stress-ng --sysbadaddr $(nproc)

The warning looks as follows:

[ 2911.172474] ------------[ cut here ]------------

[ 2911.173111] Duplicates detected: 1

[ 2911.173574] WARNING: CPU: 2 PID: 12247 at kernel/trace/tracing_map.c:983 tracing_map_sort_entries+0x3e0/0x408

[ 2911.174702] Modules linked in: iscsi_ibft(E) iscsi_boot_sysfs(E) rfkill(E) af_packet(E) nls_iso8859_1(E) nls_cp437(E) vfat(E) fat(E) ena(E) tiny_power_button(E) qemu_fw_cfg(E) button(E) fus

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	>= 4.17, < 4.19.307	Affected

References

Frequently Asked Questions

What is CVE-2024-26645?

CVE-2024-26645 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 26, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26645?

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-2024-26645?

How can CyberStrike help with CVE-2024-26645?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26645 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.

How CyberStrike Helps

Autonomous Discovery

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Continuous Pentesting

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Code Review

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HackBrowser

Browser-based exploitation validates findings with real proof-of-concept.

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