CVE intelligence and bounded remediation

CVE-2018-1002105 — Kubernetes Kubernetes security vulnerability

Critical CVSS 9.8

In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.

Severity
Critical
CVSS
9.8 (3.0)
Published
2018-12-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-388

Affected products

  • kubernetes / kubernetes
  • kubernetes / kubernetes / 1.9.12
  • redhat / openshift_container_platform / 3.2
  • redhat / openshift_container_platform / 3.3
  • redhat / openshift_container_platform / 3.4
  • redhat / openshift_container_platform / 3.5

Showing 6 representative product identities from 14 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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