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CVE-2024-38554

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ax25: Fix reference count leak issue of net_device There is a reference count leak issue of the object "net_device" in ax25_dev…

Published Jun 19, 2024EPSS 0.24%

Overview

CVE-2024-38554 is a medium-severity vulnerability. It was published on June 19, 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:

ax25: Fix reference count leak issue of net_device

There is a reference count leak issue of the object "net_device" in

ax25_dev_device_down(). When the ax25 device is shutting down, the

ax25_dev_device_down() drops the reference count of net_device one

or zero times depending on if we goto unlock_put or not, which will

cause memory leak.

In order to solve the above issue, decrease the reference count of

net_device after dev->ax25_ptr is set to null.

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/36e56b1b002bb26440403053f19f9e1a8bc075b2Refgit.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6badRefgit.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944aRefgit.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981bRefgit.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9Refgit.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2Refgit.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6badRefgit.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944aRefgit.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981bRefgit.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38554?

CVE-2024-38554 is a medium-severity vulnerability. It was published on June 19, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-38554?

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-2024-38554?

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-2024-38554?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38554 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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