CVE-2024-38566
CVE-2024-38566 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-2024-37429
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket->sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.
Frequently asked questions
- What is CVE-2024-38566?
- In the Linux kernel, the following vulnerability has been resolved: bpf: Fix verifier assumptions about socket->sk The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.
- How severe is CVE-2024-38566?
- CVE-2024-38566 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 high, and availability none.
- Is CVE-2024-38566 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-2024-38566?
- CVE-2024-38566 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-38566?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2024-38566 have an EU (EUVD) identifier?
- Yes. CVE-2024-38566 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37429.
- When was CVE-2024-38566 published?
- CVE-2024-38566 was published on 2024-06-19 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e
- https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82
- https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f
- https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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