CVE-2021-20182: redhat openshift_container_platform
Vulnerability summary
CVE-2021-20182 is a high (CVSS 8.8) vulnerability in redhat openshift_container_platform. EPSS estimates a 1.15% chance of exploitation in the next 30 days, higher than 66.2% of scored vulnerabilities.
Timeline
- 23-02-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.15%
Chance of exploitation in the next 30 days
Percentile
66%
Versus all other CVEs
30-day change
0.00 pp
From 1.15% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat1 product
- openshift_container_platform≥ 4.4, < 4.4.33 | ≥ 4.5, < 4.5.30 | ≥ 4.6, < 4.6.15
1 vendor · 1 product
References
1 links- bugzilla.redhat.com/show_bug.cgi?id=1915110X Refsource MISCIssue TrackingMitigationPatchVendor Advisory