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Always-Incorrect Control Flow Implementation Affecting containerd package, versions <1.2.6-r0

Severity

 Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.21% (60th percentile)

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  • Snyk IDSNYK-ALPINE321-CONTAINERD-8483348
  • published6 Dec 2024
  • disclosed2 Apr 2019
Report a new vulnerability Found a mistake?

Introduced: 2 Apr 2019

CVE-2019-9946  (opens in a new tab)
CWE-670  (opens in a new tab)

How to fix?

Upgrade Alpine:3.21 containerd to version 1.2.6-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream containerd package and not the containerd package as distributed by Alpine. See How to fix? for Alpine:3.21 relevant fixed versions and status.

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.