CVE-2024-27067
CVE-2024-27067 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-24329
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-27067?
- 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.
- How severe is CVE-2024-27067?
- CVE-2024-27067 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2024-27067 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-27067?
- CVE-2024-27067 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-27067?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-27067 have an EU (EUVD) identifier?
- Yes. CVE-2024-27067 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-24329.
- When was CVE-2024-27067 published?
- CVE-2024-27067 was published on 2024-05-01 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/35485dad6e28f9b17884764d4692b1655cb848d0
- https://git.kernel.org/stable/c/51c23bd691c0f1fb95b29731c356c6fd69925d17
- https://git.kernel.org/stable/c/99e425032c6ec13584d3cd33846e0c7307501b47
- https://git.kernel.org/stable/c/9e2d4b58c1da48a32905802aaeadba7084b46895
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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