Uncontrolled resource consumption in machine-config-operator-container
Priority LOW 30CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
A flaw was found in the machine-config-operator that causes an OpenShift node to become unresponsive when a container consumes a large amount of memory. An attacker could use this flaw to deny access to schedule new pods in the OpenShift cluster. This was fixed in openshift/machine-config-operator 4.4.3, openshift/machine-config-operator 4.3.25, openshift/machine-config-operator 4.2.36.
Why it matters now
EPSS 0.00871 59th percentileScored 2026-11-07
Fix Fixed Red Hat: 3 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | machine-config-operator-container | openshift/machine-config-operator 4.4.3, openshift/machine-config-operator 4.3.25, openshift/machine-config-operator 4.2.36 | — | No fix listed | CNA |
- machine-config-operator-container Vendor— Affected openshift/machine-config-operator 4.4.3, openshift/machine-config-operator 4.3.25, openshift/machine-config-operator 4.2.36 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redhat:machine-config-operator:*:*:*:*:*:*:*:* | 4.2.0 to before 4.2.36; 4.3.0 to before 4.3.25; 4.4.0 to before 4.4.3 | Vulnerable | Red Hat |
- cpe:2.3:a:redhat:machine-config-operator:*:*:*:*:*:*:*:* Versions 4.2.0 to before 4.2.36; 4.3.0 to before 4.3.25; 4.4.0 to before 4.4.3 Vulnerable ·Red Hat
Remediation
Red Hat 3 advisories
- RHSA-2020:2595 Released 2020-07-01 · Red Hat rating ModerateOpenShift Container Platform 4.2.36 ose-machine-config-operator-container security update
- Red Hat OpenShift Container Platform 4.2 openshift4/ose-machine-config-operator
- RHSA-2020:2439 Released 2020-06-17 · Red Hat rating ModerateOpenShift Container Platform 4.3.25 security update
- Red Hat OpenShift Container Platform 4.3 openshift4/ose-machine-config-operator
- RHSA-2020:1939 Released 2020-05-04 · Red Hat rating ModerateOpenShift Container Platform 4.4.3 ose-machine-config-operator-container security update
- Red Hat OpenShift Container Platform 4.4 openshift4/ose-machine-config-operator
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4.2 | Fixed | RHSA-2020:2595 |
| Red Hat OpenShift Container Platform 4.3 | Fixed | RHSA-2020:2439 |
| Red Hat OpenShift Container Platform 4.4 | Fixed | RHSA-2020:1939 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1750
- 2026-10-03 Alias added: GHSA-rxh2-vw4h-qg4p
References
Sources
- CVE-2020-1750 · CVE Program
- CVE-2020-1750 · NVD
- FIRST EPSS
- GHSA-rxh2-vw4h-qg4p · GitHub Advisory Database · CC BY 4.0
- CVE-2020-1750 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences