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CVE-2024-45027

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup() If xhci_mem_init() fails, it calls into xhci_mem_…

Published Sep 11, 2024CWE-459EPSS 0.21%

Overview

CVE-2024-45027 is a medium-severity vulnerability. It was published on September 11, 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: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup()

If xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop

up the damage. If it fails early enough, before xhci->interrupters

is allocated but after xhci->max_interrupters has been set, which

happens in most (all?) cases, things get uglier, as xhci_mem_cleanup()

unconditionally derefences xhci->interrupters. With prejudice.

Gate the interrupt freeing loop with a check on xhci->interrupters

being non-NULL.

Found while debugging a DMA allocation issue that led the XHCI driver

on this exact path.

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/3efb29f6a78d4746f958c1ab6cd7981c5762f03bRefgit.kernel.org/stable/c/770cacc75b0091ece17349195d72133912c1ca7cRefgit.kernel.org/stable/c/dcdb52d948f3a17ccd3fce757d9bd981d7c32039

How CyberStrike helps

Frequently asked questions

What is CVE-2024-45027?

CVE-2024-45027 is a medium-severity vulnerability. It was published on September 11, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-45027?

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-2024-45027?

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-2024-45027?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-45027 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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