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CVE-2024-38388

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup Use the control private_free callback to free the associated data bl…

Published Jun 21, 2024CWE-401EPSS 0.23%

Overview

CVE-2024-38388 is a high-severity vulnerability. It was published on June 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

ALSA: hda/cs_dsp_ctl: Use private_free for control cleanup

Use the control private_free callback to free the associated data

block. This ensures that the memory won't leak, whatever way the

control gets destroyed.

The original implementation didn't actually remove the ALSA

controls in hda_cs_dsp_control_remove(). It only freed the internal

tracking structure. This meant it was possible to remove/unload the

amp driver while leaving its ALSA controls still present in the

soundcard. Obviously attempting to access them could cause segfaults

or at least dereferencing stale pointers.

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/172811e3a557d8681a5e2d0f871dc04a2d17eb13Refgit.kernel.org/stable/c/191dc1b2ff0fb35e7aff15a53224837637df8bffRefgit.kernel.org/stable/c/3291486af5636540980ea55bae985f3eaa5b0740Refgit.kernel.org/stable/c/6e359be4975006ff72818e79dad8fe48293f2eb2Refgit.kernel.org/stable/c/172811e3a557d8681a5e2d0f871dc04a2d17eb13Refgit.kernel.org/stable/c/191dc1b2ff0fb35e7aff15a53224837637df8bffRefgit.kernel.org/stable/c/3291486af5636540980ea55bae985f3eaa5b0740Refgit.kernel.org/stable/c/6e359be4975006ff72818e79dad8fe48293f2eb2

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38388?

CVE-2024-38388 is a high-severity vulnerability. It was published on June 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-38388?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-38388?

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-2024-38388?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38388 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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