Is CVE-2019-9946 in the CISA KEV catalog?

No. CVE-2019-9946 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-9946?

CVE-2019-9946 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-9946?

CVE-2019-9946 has an EPSS score of 3.12% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-9946?

Upgrade kubernetes to 1.13.5 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2019-9946

HIGHEPSS 86th pctl

7.5

CVSS v3

NVD

Description

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.

CWE-670

How to fix

Remediation Available

kubernetesNVD

Affected:>= 1.13.0, < 1.13.5Fixed in:1.13.5CVE-2019-9946derived from NVD

portmapNVD

Affected:< 0.7.5Fixed in:0.7.5CVE-2019-9946derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

3.12%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Patch2

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.