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CVE-2024-36932

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: thermal/debugfs: Prevent use-after-free from occurring after cdev removal Since thermal_debug_cdev_remove() does not run under…

Published May 30, 2024CWE-416EPSS 0.20%

Overview

CVE-2024-36932 is a medium-severity vulnerability. It was published on May 30, 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:

thermal/debugfs: Prevent use-after-free from occurring after cdev removal

Since thermal_debug_cdev_remove() does not run under cdev->lock, it can

run in parallel with thermal_debug_cdev_state_update() and it may free

the struct thermal_debugfs object used by the latter after it has been

checked against NULL.

If that happens, thermal_debug_cdev_state_update() will access memory

that has been freed already causing the kernel to crash.

Address this by using cdev->lock in thermal_debug_cdev_remove() around

the cdev->debugfs value check (in case the same cdev is removed at the

same time in two different threads) and its reset to NULL.

Cc :6.8+ <[email protected]> # 6.8+

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/c1279dee33369e2525f532364bb87207d23b9481Refgit.kernel.org/stable/c/d351eb0ab04c3e8109895fc33250cebbce9c11daRefgit.kernel.org/stable/c/c1279dee33369e2525f532364bb87207d23b9481Refgit.kernel.org/stable/c/d351eb0ab04c3e8109895fc33250cebbce9c11da

How CyberStrike helps

Frequently asked questions

What is CVE-2024-36932?

CVE-2024-36932 is a medium-severity vulnerability. It was published on May 30, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-36932?

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-2024-36932?

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-2024-36932?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-36932 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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