CVE catalog
CVE-2019-9946
kubernetes: CVE-2019-9946
- Severity
- Medium · CVSS 6.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.16% · Oct 25, 2026
Cloud Native Computing Foundation (CNCF) CNI (Container Networking Interface) 0.7.4 has a network firewall misconfiguration which affects Kubernetes. The CNI 'portmap' plugin, used to setup HostPorts for CNI, inserts rules at the front of the iptables nat chains; which take precedence over the KUBE- SERVICES chain. Because of this, the HostPort/portmap rule could match incoming traffic even if there were better fitting, more specific service definition rules like NodePorts later in the chain. The issue is fixed in CNI 0.7.5 and Kubernetes 1.11.9, 1.12.7, 1.13.5, and 1.14.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | kubernetes | sid | 1.36.4+ds-1 | fixed |
| Debian | kubernetes | forky | 1.36.4+ds-1 | fixed |
| Debian | kubernetes | trixie | 1.32.3+ds-2 | fixed |
| Debian | kubernetes | bookworm | 1.20.5+really1.20.2-1.1+deb12u1 | fixed |
| Debian | golang-github-containernetworking-plugins | sid | 1.9.1+ds1-1 | not affected |
| Debian | golang-github-containernetworking-plugins | forky | 1.9.1+ds1-1 | not affected |
| Debian | golang-github-containernetworking-plugins | trixie | 1.1.1+ds1-3 | not affected |
| Debian | golang-github-containernetworking-plugins | bookworm | 1.1.1+ds1-3 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | kubernetes | source | sid | 1.17.4-1 | not yet assigned | Not reported | Not reported |
| Debian | kubernetes | source | forky | 1.17.4-1 | not yet assigned | Not reported | Not reported |
| Debian | kubernetes | source | trixie | 1.17.4-1 | not yet assigned | Not reported | Not reported |
| Debian | kubernetes | source | bookworm | 1.17.4-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-github-containernetworking-plugins | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-github-containernetworking-plugins | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-github-containernetworking-plugins | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | golang-github-containernetworking-plugins | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [containernetworking-plugins]Not affected
Source package: [golang-github-containernetworking-plugins]
Details (2)
1.1.1+ds1-3+b5· amd64 · bookwormNot affected
dsa · golang-github-containernetworking-plugins · debian · bookworm
1.1.1+ds1-3+b5· arm64 · bookwormNot affected
dsa · golang-github-containernetworking-plugins · debian · bookworm
- [golang-github-containernetworking-plugins-dev]Not affected
Source package: [golang-github-containernetworking-plugins]
Details (2)
1.1.1+ds1-3· all · bookwormNot affected
dsa · golang-github-containernetworking-plugins · debian · bookworm
1.1.1+ds1-3· all · bookwormNot affected
dsa · golang-github-containernetworking-plugins · debian · bookworm
- [kubernetes-client]Fixed
Source package: [kubernetes]
Details (2)
1.20.5+really1.20.2-1.1+deb12u1· amd64 · bookwormFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · bookworm; dsa · kubernetes · debian · 12
1.20.5+really1.20.2-1.1+deb12u1· arm64 · bookwormFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · bookworm; dsa · kubernetes · debian · 12
[Debian 13 (Trixie)]
- [golang-k8s-kubectl-dev]Fixed
Source package: [kubernetes]
Details (2)
1.32.3+ds-2· all · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
1.32.3+ds-2· all · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
- [kubectl]Fixed
Source package: [kubernetes]
Details (2)
1.32.3+ds-2· amd64 · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
1.32.3+ds-2· arm64 · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
- [kubernetes-client]Fixed
Source package: [kubernetes]
Details (2)
1.32.3+ds-2· amd64 · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
1.32.3+ds-2· arm64 · trixieFixed · Fixed:
1.17.4-1dsa · kubernetes · debian · 13
Observed:
References
- [https://access.redhat.com/errata/RHBA-2019:0862]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2019_3403.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-9946]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-9946]
- [https://security-tracker.debian.org/tracker/CVE-2019-9946]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]