CVE Vulnerabilities

CVE-2020-8558

Published: Jul 27, 2020 | Modified: Sep 20, 2022
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
5.8 MEDIUM
AV:A/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
5.4 MODERATE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Ubuntu
MEDIUM

The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the nodes network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

Affected Software

Name Vendor Start Version End Version
Kubernetes Kubernetes 1.1.0 (including) 1.16.10 (including)
Kubernetes Kubernetes 1.17.0 (including) 1.17.6 (including)
Kubernetes Kubernetes 1.18.0 (including) 1.18.3 (including)
Red Hat OpenShift Container Platform 3.11 RedHat atomic-openshift-0:3.11.248-1.git.0.92ee8ac.el7 *
Red Hat OpenShift Container Platform 4.3 RedHat openshift-0:4.3.31-202007280738.p0.git.0.9884401.el7 *
Red Hat OpenShift Container Platform 4.3 RedHat openshift4/ose-hyperkube:v4.3.31-202007272153.p0 *
Red Hat OpenShift Container Platform 4.4 RedHat openshift4/ose-hyperkube:v4.4.0-202007120152.p0 *
Red Hat OpenShift Container Platform 4.4 RedHat openshift-0:4.4.0-202007090832.p0.git.0.bc32fb1.el8 *
Red Hat OpenShift Container Platform 4.5 RedHat openshift4/ose-hyperkube:v4.5.0-202007100518.p0 *
Red Hat OpenShift Container Platform 4.5 RedHat openshift-0:4.5.0-202007012112.p0.git.0.582d7fc.el8 *
Kubernetes Ubuntu eoan *
Kubernetes Ubuntu groovy *
Kubernetes Ubuntu hirsute *
Kubernetes Ubuntu impish *
Kubernetes Ubuntu kinetic *
Kubernetes Ubuntu lunar *
Kubernetes Ubuntu mantic *

References