CVE-2024-43820

5.5 · MEDIUM

Published Aug 17, 2024 linux EPSS 0.20% (9th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-43820 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 17, 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:

dm-raid: Fix WARN_ON_ONCE check for sync_thread in raid_resume

rm-raid devices will occasionally trigger the following warning when

being resumed after a table load because DM_RECOVERY_RUNNING is set:

WARNING: CPU: 7 PID: 5660 at drivers/md/dm-raid.c:4105 raid_resume+0xee/0x100 [dm_raid]

The failing check is:

WARN_ON_ONCE(test_bit(MD_RECOVERY_RUNNING, &mddev->recovery));

This check is designed to make sure that the sync thread isn't

registered, but md_check_recovery can set MD_RECOVERY_RUNNING without

the sync_thread ever getting registered. Instead of checking if

MD_RECOVERY_RUNNING is set, check if sync_thread is non-NULL.

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	>= 6.7.12, < 6.8	Affected

References

Ref git.kernel.org/stable/c/3199a34bfaf7561410e0be1e33a61eba870768fc Ref git.kernel.org/stable/c/a5c15a78c0e1631b7df822b56e8b6424e4d1ca3e

Frequently Asked Questions

What is CVE-2024-43820?

CVE-2024-43820 is a medium-severity vulnerability affecting linux linux_kernel. It was published on August 17, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-43820?

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-2024-43820?

How can CyberStrike help with CVE-2024-43820?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-43820 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

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HackBrowser

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