CVE-2021-25737

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Summary

CVECVE-2021-25737
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-06 12:15:00 UTC
Updated2021-10-07 17:55:00 UTC
DescriptionA security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs.

Risk And Classification

Problem Types: CWE-601

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Kubernetes Kubernetes All All All All
Application Kubernetes Kubernetes 1.21.0 - All All

References

ReferenceSourceLinkTags
CVE-2021-25737 Kubernetes Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com
[Security Advisory] CVE-2021-25737: Holes in EndpointSlice Validation Enable Host Network Hijack MISC groups.google.com
CVE-2021-25737: Holes in EndpointSlice Validation Enable Host Network Hijack · Issue #102106 · kubernetes/kubernetes · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: John Howard

Legacy QID Mappings

  • 180886 Debian Security Update for kubernetes (CVE-2021-25737)
  • 239525 Red Hat Update for OpenShift Container Platform 4.8.2 (RHSA-2021:2437)
  • 376958 Kubernetes kube-Apiserver EndpointSlice Validation Vulnerability
  • 770074 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021:2437)
  • 770111 Red Hat OpenShift Container Platform 4.8 Security Update (RHSA-2021-2437)
  • 980534 Go (go) Security Update for k8s.io/kubernetes (GHSA-mfv7-gq43-w965)
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