RHSA-2020:2439
Vulnerability from csaf_redhat - Published: 2020-06-17 20:16 - Updated: 2025-11-21 18:14Summary
Red Hat Security Advisory: OpenShift Container Platform 4.3.25 security update
Severity
Moderate
Notes
Topic: Red Hat OpenShift Container Platform release 4.3.25 is now available with
updates to packages and images that fix several bugs and add enhancements.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
Security Fix(es):
* machine-config-operator-container: A flaw in the machine-config-operator caused an OpenShift node to become unresponsive when a container consumes a large amount of memory (CVE-2020-1750)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s)
listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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.
6.5 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOSE-4.3:openshift4/ose-machine-config-operator@sha256:0a0b498540702549d1503cb64069f930fab6cac67c2d08e765444bced93fc988_ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOSE-4.3:openshift4/ose-machine-config-operator@sha256:af9fa4e8cd5614e66f55d411b91310a592d54a96331fa9b2408a10f916520975_amd64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOSE-4.3:openshift4/ose-machine-config-operator@sha256:f62ec2cdd00a938379f5734e765df1fe2a450c374af160d005dc8ba43e4b9878_s390x | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
8 references
Acknowledgments
IBM
Cheryl A Fillekes
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{
"acknowledgments": [
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"names": [
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],
"organization": "IBM"
}
],
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"text": "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.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "machine-config-operator-container: mmap stressor makes the cluster unresponsive",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1750"
}
],
"release_date": "2019-10-28T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-06-17T20:16:11+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for release 4.3.25, for important instructions on\nhow to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"7Server-RH7-RHOSE-4.3:openshift4/ose-machine-config-operator@sha256:0a0b498540702549d1503cb64069f930fab6cac67c2d08e765444bced93fc988_ppc64le",
"7Server-RH7-RHOSE-4.3:openshift4/ose-machine-config-operator@sha256:af9fa4e8cd5614e66f55d411b91310a592d54a96331fa9b2408a10f916520975_amd64",
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "machine-config-operator-container: mmap stressor makes the cluster unresponsive"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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