Server-Side Request Forgery (SSRF) Affecting kubeadm package, versions <0:1.14.9-1.0.4.el7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.1% (43rd percentile)

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  • Snyk IDSNYK-ORACLE7-KUBEADM-2575061
  • published10 Apr 2022
  • disclosed5 Jun 2020

Introduced: 5 Jun 2020

CVE-2020-8555  (opens in a new tab)
CWE-918  (opens in a new tab)

How to fix?

Upgrade Oracle:7 kubeadm to version 0:1.14.9-1.0.4.el7 or higher.
This issue was patched in ELSA-2020-5727.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubeadm package and not the kubeadm package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).

CVSS Scores

version 3.1