CVE-2021-20182

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

A privilege escalation flaw was found in openshift4/ose-docker-builder. The build container runs with high privileges using a chrooted environment instead of runc. If an attacker can gain access to this build container, they can potentially utilize the raw devices of the underlying node, such as the network and storage devices, to at least escalate their privileges to that of the cluster admin. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-552

Affected software

VendorProductVersions
n/aopenshiftgithub.com/openshift/builder v0.0.0-20210118193943-6d10f5202a76

References

Timeline

Published
Feb 23, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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