CVE-2020-8559

CVE Details

Release Date:	2020-07-22
Impact:	None	What is this?

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

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

CVSS v3 metrics

Base Score:	6.8
Vector String:	CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
Version:	3.0
Attack 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