CVE-2021-20182

HIGH

OpenShift Container Platform 4.4-4.4.33 - Privilege Escalation via Chrooted Build Container

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References
Issue Tracking, Mitigation, Patch, Vendor Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1915110

Scores

CVSS v3 8.8
EPSS 0.0053
EPSS Percentile 67.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-552
Status published
Products (1)
redhat/openshift_container_platform 4.4 - 4.4.33
Published Feb 23, 2021
Tracked Since Feb 18, 2026