Vulnerability in Red Hat Openshift Container Platform
CVE-2021-20182
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.
EPSS: 0.011 (63.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Redhat Openshift_container_platform
- N/a Openshift — versions github.com/openshift/builder v0.0.0-20210118193943-6d10f5202a76
Weakness classification (CWE)
References
- secalert@redhat.com (Patch, x_refsource_MISC, Mitigation, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-20182?
- CVE-2021-20182 is a high-severity vulnerability in Red Hat Openshift Container Platform, classified under Files or Directories Accessible to External Parties. CVSS score: 8.8/10. Published 2021-02-23.
- How severe is CVE-2021-20182?
- High severity. CVSS v3 base score is 8.8 out of 10.