Cyber Resilience

CVE-2023-1668

Cloudbase Open Vswitch 1.5.0 – 2.13.11

Published
10 April 2023
Modified
23 April 2025
Patch / advisory
View advisory
CVSS Score v3.1 8.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS Score 0.012 66th percentile
Risk Priority 64 floored blend · peak EPSS

Summary

CVE-2023-1668 is a high-severity Always-Incorrect Control Flow Implementation (CWE-670) vulnerability in Cloudbase Open Vswitch. Its CVSS base score is 8.2 (High).

Operationally, ranked in the top 34% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

A flaw was found in openvswitch (OVS). When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results (for both kernel and userspace datapath) in installing a…

more

datapath flow matching all IP protocols (nw_proto is wildcarded) for this flow, but with an incorrect action, possibly causing incorrect handling of other IP packets with a != 0 IP protocol that matches this dp flow.

CWE(s)
CWE-670

Related Threats

CVEs Like This One

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CVE-2021-3560Same product: Debian Debian Linux
CVE-2023-5115Same product: Debian Debian Linux
CVE-2023-5366Same product: Redhat Enterprise Linux
CVE-2023-4569Same product: Debian Debian Linux
CVE-2023-3618Same product: Debian Debian Linux
CVE-2023-39418Same product: Debian Debian Linux
CVE-2026-41082Same product: Debian Debian Linux

Affected Assets

cloudbase
open vswitch
3.1.0 · 1.5.0 — 2.13.11 · 2.14.0 — 2.14.9 · 2.15.0 — 2.15.8
debian
debian linux
11.0
redhat
openshift container platform
4.0
redhat
openstack platform
16.1, 16.2, 17.0
redhat
virtualization
4.0
redhat
fast datapath
all versions

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V9.2.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prevent incorrect control-flow implementations via reviews, testing, and static analysis.

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.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect paths that deviate from intended logic.

A.8.25 Secure development life cycle partial match
prevents

Secure development lifecycle processes can catch incorrect control-flow logic during design and code review.

A.8.28 Secure coding partial match
prevents

Secure coding standards and reviews directly target flawed control-flow implementations.

A.8.32 Change management partial match
prevents

Change-management gates may prevent deployment of flawed logic but do not address the coding defect itself.

References