Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2021-4238

Insufficient Entropy

Published: Dec 27, 2022 | Modified: Apr 11, 2025
CVSS 3.x
9.1
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
7 IMPORTANT
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-4238
CWEhttps://cwe.mitre.org/data/definitions/331.html

Randomly-generated alphanumeric strings contain significantly less entropy than expected. The RandomAlphaNumeric and CryptoRandomAlphaNumeric functions always return strings containing at least one digit from 0 to 9. This significantly reduces the amount of entropy in short strings generated by these functions.

Weakness

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

Affected Software

NameVendorStart VersionEnd Version
GoutilsGoutils_project*1.1.1 (excluding)
OpenShift Service Mesh 2.1RedHatservicemesh-0:2.1.6-1.el8*
OpenShift Service Mesh 2.1RedHatservicemesh-operator-0:2.1.6-1.el8*
Red Hat OpenShift Container Platform 4.10RedHatopenshift4/ose-cluster-network-operator:v4.10.0-202301310115.p0.gdc0a59a.assembly.stream*
Red Hat OpenShift Container Platform 4.10RedHatopenshift4/ose-installer:v4.10.0-202302161028.p0.g8862860.assembly.stream*
Red Hat OpenShift Container Platform 4.10RedHatopenshift4/ose-machine-config-operator:v4.10.0-202303032215.p0.ga21b2b8.assembly.stream*
Red Hat OpenShift Container Platform 4.10RedHatopenshift4/ose-kubernetes-nmstate-handler-rhel8:v4.10.0-202303162241.p0.g68b1665.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/ose-cluster-baremetal-operator-rhel8:v4.11.0-202301191245.p0.g4ffdd2f.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/ose-image-customization-controller-rhel8:v4.11.0-202301252336.p0.ge0e3979.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/ose-machine-config-operator:v4.11.0-202302071115.p0.gc101063.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/ose-installer:v4.11.0-202302130454.p0.g59d1196.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/dpu-network-rhel8-operator:v4.11.0-202302282354.p0.g7183b08.assembly.stream*
Red Hat OpenShift Container Platform 4.11RedHatopenshift4/ose-kubernetes-nmstate-handler-rhel8:v4.11.0-202303151654.p0.g4695e71.assembly.stream*
Red Hat OpenShift Container Platform 4.12RedHatopenshift4/ose-image-customization-controller-rhel8:v4.12.0-202301171655.p0.g27777d0.assembly.stream*
Red Hat OpenShift Container Platform 4.12RedHatopenshift4/ose-machine-config-operator:v4.12.0-202301262025.p0.ge3dc943.assembly.stream*
Red Hat OpenShift Container Platform 4.12RedHatopenshift4/ose-installer:v4.12.0-202302080355.p0.gb8d2457.assembly.stream*
Red Hat OpenShift Container Platform 4.12RedHatopenshift4/dpu-network-rhel8-operator:v4.12.0-202302111028.p0.gb6124a7.assembly.stream*
Red Hat OpenShift Container Platform 4.12RedHatopenshift4/ose-kubernetes-nmstate-handler-rhel8:v4.12.0-202303081941.p0.gc56075a.assembly.stream*
Red Hat OpenShift Container Platform 4.13RedHatopenshift4/ose-image-customization-controller-rhel8:v4.13.0-202304260928.p0.g8765166.assembly.stream*
Red Hat OpenShift Container Platform 4.13RedHatopenshift4/ose-installer:v4.13.0-202305091542.p0.g44db7b2.assembly.stream*
Red Hat OpenShift Container Platform 4.13RedHatopenshift4/ose-machine-config-operator:v4.13.0-202304251516.p0.g70aa0a5.assembly.stream*
Red Hat OpenShift Container Platform 4.9RedHatopenshift4/ose-cluster-network-operator:v4.9.0-202301301454.p0.gbb98961.assembly.stream*
Red Hat OpenShift GitOps 1.5RedHatopenshift-gitops-1/applicationset-rhel8:v1.5.10-6*
Red Hat OpenShift GitOps 1.5RedHatopenshift-gitops-1/argocd-rhel8:v1.5.10-6*
Red Hat OpenShift GitOps 1.5RedHatopenshift-gitops-1/dex-rhel8:v1.5.10-6*
Red Hat OpenShift GitOps 1.5RedHatopenshift-gitops-1/gitops-rhel8-operator:v1.5.10-6*
Red Hat OpenShift GitOps 1.5RedHatopenshift-gitops-1/kam-delivery-rhel8:v1.5.10-6*
Red Hat OpenShift GitOps 1.6RedHatopenshift-gitops-1/argocd-rhel8:v1.6.5-5*
Red Hat OpenShift GitOps 1.6RedHatopenshift-gitops-1/dex-rhel8:v1.6.5-5*
Red Hat OpenShift GitOps 1.6RedHatopenshift-gitops-1/gitops-rhel8-operator:v1.6.5-5*
Red Hat OpenShift GitOps 1.6RedHatopenshift-gitops-1/kam-delivery-rhel8:v1.6.5-5*
Red Hat OpenShift GitOps 1.7RedHatopenshift-gitops-1/argocd-rhel8:v1.7.2-5*
Red Hat OpenShift GitOps 1.7RedHatopenshift-gitops-1/dex-rhel8:v1.7.2-5*
Red Hat OpenShift GitOps 1.7RedHatopenshift-gitops-1/gitops-rhel8-operator:v1.7.2-5*
Red Hat OpenShift GitOps 1.7RedHatopenshift-gitops-1/kam-delivery-rhel8:v1.7.2-5*
Red Hat OpenShift Service Mesh 2.3 for RHEL 8RedHatopenshift-service-mesh/istio-rhel8-operator:2.3.1-10*
RHODF-4.12-RHEL-8RedHatodf4/mcg-rhel8-operator:v4.12.1-4*
RHODF-4.13-RHEL-9RedHatodf4/mcg-rhel9-operator:v4.13.0-41*
Golang-github-masterminds-goutilsUbuntukinetic*
Golang-github-masterminds-goutilsUbuntulunar*
Golang-github-masterminds-goutilsUbuntumantic*
Golang-github-masterminds-goutilsUbuntuoracular*
Golang-github-masterminds-goutilsUbuntuplucky*
Golang-github-masterminds-goutilsUbuntutrusty*
Golang-github-masterminds-goutilsUbuntuxenial*

Potential Mitigations

References

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