CVE-2024-56687

5.5 · MEDIUM

Published Dec 28, 2024 linux CWE-667 EPSS 0.16% (6th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-56687 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 28, 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:

usb: musb: Fix hardware lockup on first Rx endpoint request

There is a possibility that a request's callback could be invoked from

usb_ep_queue() (call trace below, supplemented with missing calls):

req->complete from usb_gadget_giveback_request

(drivers/usb/gadget/udc/core.c:999)

usb_gadget_giveback_request from musb_g_giveback

(drivers/usb/musb/musb_gadget.c:147)

musb_g_giveback from rxstate

(drivers/usb/musb/musb_gadget.c:784)

rxstate from musb_ep_restart

(drivers/usb/musb/musb_gadget.c:1169)

musb_ep_restart from musb_ep_restart_resume_work

(drivers/usb/musb/musb_gadget.c:1176)

musb_ep_restart_resume_work from musb_queue_resume_work

(drivers/usb/musb/musb_core.c:2279)

musb_queue_resume_work from musb_gadget_queue

(drivers/usb/musb/musb_gadget.c:1241)

musb_gadget_queue from usb_ep_queue

(drivers/usb/gadget/udc/core.c:300)

According to the docstring of usb_ep_queue(), this should not happen:

"Note that @r

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	>= 5.18, < 6.1.120	Affected

References

Ref git.kernel.org/stable/c/0c89445e6d475b78d37b64ae520831cd43af7db4 Ref git.kernel.org/stable/c/3fc137386c4620305bbc2a216868c53f9245670a Ref git.kernel.org/stable/c/5906ee3693674d734177df13a519a21bb03f730d Ref git.kernel.org/stable/c/c749500b28cae67410792096133ee7f282439c51 Ref git.kernel.org/stable/c/f05ad9755bb294328c3d0f429164ac6d4d08c548 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-56687?

CVE-2024-56687 is a medium-severity vulnerability affecting linux linux_kernel. It was published on December 28, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-56687?

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-2024-56687?

How can CyberStrike help with CVE-2024-56687?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-56687 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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