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CVE-2024-27067

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: xen/evtchn: avoid WARN() when unbinding an event channel When unbinding a user event channel, the related handler might be call…

Published May 1, 2024EPSS 0.22%

Overview

CVE-2024-27067 is a medium-severity vulnerability. It was published on May 1, 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:

xen/evtchn: avoid WARN() when unbinding an event channel

When unbinding a user event channel, the related handler might be

called a last time in case the kernel was built with

CONFIG_DEBUG_SHIRQ. This might cause a WARN() in the handler.

Avoid that by adding an "unbinding" flag to struct user_event which

will short circuit the handler.

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/35485dad6e28f9b17884764d4692b1655cb848d0Refgit.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17Refgit.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47Refgit.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895Refgit.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0Refgit.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17Refgit.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47Refgit.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895

How CyberStrike helps

Frequently asked questions

What is CVE-2024-27067?

CVE-2024-27067 is a medium-severity vulnerability. It was published on May 1, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-27067?

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-2024-27067?

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-2024-27067?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-27067 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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