CVE-2020-8559

CVE Details

Release Date:

2020-07-22

Description

The Kubernetes kube-apiserver in versions v1.6-v1.15, and versions prior to v1.16.13, v1.17.9 and v1.18.6 are vulnerable to an unvalidated redirect on proxied upgrade requests that could allow an attacker to escalate privileges from a node compromise to a full cluster compromise.

See more information about CVE-2020-8559 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	6.8	Base Metrics:	AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	High	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	High	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (istio)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kata)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kata)	ELSA-2020-5766	2020-07-22
Oracle Linux version 7 (kata-image)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kata-image)	ELSA-2020-5766	2020-07-22
Oracle Linux version 7 (kata-runtime)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kata-runtime)	ELSA-2020-5766	2020-07-22
Oracle Linux version 7 (kernel-uek-container)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kernel-uek-container)	ELSA-2020-5766	2020-07-22
Oracle Linux version 7 (kubernetes)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (kubernetes)	ELSA-2020-5766	2020-07-22
Oracle Linux version 7 (kubernetes)	ELSA-2020-5767	2020-07-22
Oracle Linux version 7 (olcne)	ELSA-2020-5765	2020-07-22
Oracle Linux version 7 (olcne)	ELSA-2020-5766	2020-07-22

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