CVE-2023-5158
Linux Kernel ≤ 5.12.19
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:HCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2023-5158 is a medium-severity Incorrect Provision of Specified Functionality (CWE-684) vulnerability in Linux Linux Kernel. Its CVSS base score is 6.5 (Medium).
Operationally, ranked at the 11th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-57496
Vulnerability Data
A flaw was found in vringh_kiov_advance in drivers/vhost/vringh.c in the host side of a virtio ring in the Linux Kernel. This issue may result in a denial of service from guest to host via zero length descriptor.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Periodic checks confirm that specified security and privacy functions are actually provided and operating.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
A.8.25 requires that security be designed and implemented in the SDLC (including secure coding, requirements, testing and checkpoints), but does not itself stop incorrect functionality from being exploitable once the code is written and deployed; the weakness can still be present and reachable.
Explicit application security requirements and acceptance criteria help ensure the delivered software matches its intended specifications.
Security testing in development and acceptance validates that implemented functionality conforms to specifications before release.
Change management processes reduce the chance of unintended functional deviations during updates, though they do not directly address initial specification conformance.
Hardening callouts derived
DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.
- No fine-grained STIG row for CWE-684, a class-level weakness, and none of its children carries one either.