CVE-2023-1668
No exploitation reported by the sources we read.
- Published2023-04-10
- Fixed in3.0.4 · 2.17.6 · 2.16.7 · 2.15.8 · 2.14.9 · 2.13.11
- WeaknessCWE-670
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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 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.
Timeline
dates in UTC- 2023-04-1022:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 21:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-1668?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-1668?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 3.0 | ≥ 3.0.0, < 3.0.4 | 3.0.4 | NVD |
| 2.17 | ≥ 2.17.0, < 2.17.6 | 2.17.6 | NVD |
| 2.16 | ≥ 2.16.0, < 2.16.7 | 2.16.7 | NVD |
| 2.15 | ≥ 2.15.0, < 2.15.8 | 2.15.8 | NVD |
| 2.14 | ≥ 2.14.0, < 2.14.9 | 2.14.9 | NVD |
| 2.13 | ≥ 1.5.0, < 2.13.11 | 2.13.11 | NVD |
| 3.1 | = 3.1.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 16.1 | = 16.1 | no fix published | NVD |
| 16.2 | = 16.2 | no fix published | NVD |
| 17.0 | = 17.0 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 11.0 | = 11.0 | no fix published | NVD |
3 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Cloudbase open vswitch to 3.0.4 · 2.17.6 · 2.16.7 · 2.15.8 · 2.14.9 · 2.13.11
Advisories and patches
- www.openwall.comMitigation · Patch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
- Published
- 2023-04-10
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2023-1668?
Is CVE-2023-1668 actively exploited?
What is the CVSS score for CVE-2023-1668?
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