Vulnerability-Lookup

SUSE-RU-2020:2204-1

Vulnerability from csaf_suse - Published: 2020-08-11 12:33 - Updated: 2026-09-20 11:58

Summary

Bugfixes on cilium, gangway and skuba and security fix for Kubernetes (cve-2020-8557)

Severity

Moderate

Notes

Title of the patch: Bugfixes on cilium, gangway and skuba and security fix for Kubernetes (cve-2020-8557)

Description of the patch: = Required Actions == Kubernetes (Security fix) This fix will be applied to the kubelet daemon running on the nodes by `skuba-update`. See https://documentation.suse.com/suse-caasp/4.2/html/caasp-admin/_cluster_updates.html#_base_os_updates for more details. Make sure you look at the Release Notes https://www.suse.com/releasenotes/x86_64/SUSE-CAASP/4/#_changes_in_4_2_2 for any known bug. == Cilium Bugfix Cilium will be updated by `skuba addon upgrade`. No action is required from your side. For more info see https://documentation.suse.com/suse-caasp/4.2/html/caasp-admin/_cluster_updates.html#_generating_an_overview_of_available_addon_updates == Gangway bugfix Gangway will be updated by `skuba addon upgrade`. No action is required from your side. For more info see https://documentation.suse.com/suse-caasp/4.2/html/caasp-admin/_cluster_updates.html#_generating_an_overview_of_available_addon_updates == Skuba In order to update skuba, you need to update the admin workstation. See detailed instructions at https://documentation.suse.com/suse-caasp/4.1/html/caasp-admin/_cluster_updates.html#_update_management_workstation

Patchnames: SUSE-2020-2204,SUSE-SLE-Module-Containers-15-SP1-2020-2204

CVE-2020-8557

5.5 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Recommended 16 products

Product	Version	Remediation
Unresolved product id: SUSE Enterprise Storage 6:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Enterprise Storage 6:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP1:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP1:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Containers 15 SP1:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Module for Containers 15 SP1:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP1:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server 15 SP1:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP1:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP1:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Proxy 4.0:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Proxy 4.0:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Retail Branch Server 4.0:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Retail Branch Server 4.0:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Server 4.0:kubernetes-client-0:1.17.4-4.18.1.x86_64	—	Vendor Fix
Unresolved product id: SUSE Manager Server 4.0:kubernetes-common-0:1.17.4-4.18.1.x86_64	—	Vendor Fix

Threats

Impact moderate

References

11 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/s…	self
https://lists.suse.com/pipermail/sle-updates/2020…	self
https://bugzilla.suse.com/1146991	self
https://bugzilla.suse.com/1173039	self
https://bugzilla.suse.com/1173055	self
https://bugzilla.suse.com/1173165	self
https://bugzilla.suse.com/1173984	self
https://www.suse.com/security/cve/CVE-2020-8557/	self
https://www.suse.com/security/cve/CVE-2020-8557	external
https://bugzilla.suse.com/1173984	external

JSON

To clipboard

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}

CVE-2020-8557 (GCVE-0-2020-8557)

Vulnerability from cvelistv5 – Published: 2020-07-23 16:59 – Updated: 2024-09-17 03:14

Title

Kubernetes node disk Denial of Service by writing to container /etc/hosts

Summary

The Kubernetes kubelet component in versions 1.1-1.16.12, 1.17.0-1.17.8 and 1.18.0-1.18.5 do not account for disk usage by a pod which writes to its own /etc/hosts file. The /etc/hosts file mounted in a pod by kubelet is not included by the kubelet eviction manager when calculating ephemeral storage usage by a pod. If a pod writes a large amount of data to the /etc/hosts file, it could fill the storage space of the node and cause the node to fail.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

kubernetes CNA under the mitre root

CNA scorecard – unranked: 2 records in the last 180 days, 10 needed details

References

3 references

URL	Tags
https://github.com/kubernetes/kubernetes/issues/93032	x_refsource_CONFIRM
https://groups.google.com/g/kubernetes-security-a…	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2020082…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Kubernetes	Kubernetes	Affected: 1.15 Affected: 1.14 Affected: 1.13 Affected: 1.12 Affected: 1.11 Affected: 1.10 Affected: 1.9 Affected: 1.8 Affected: 1.7 Affected: 1.6 Affected: 1.5 Affected: 1.4 Affected: 1.3 Affected: 1.2 Affected: 1.1 Affected: 1.18 , < 1.18.6 (custom) Affected: 1.17 , < 1.17.9 (custom) Affected: 1.16 , < 1.16.13 (custom)

Date Public

2020-07-15 00:00

Credits

Kebe Liu of DaoCloud

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:03:46.168Z",
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          {
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            "tags": [
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            "url": "https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY/m/vVSO61AhBwAJ"
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            "url": "https://security.netapp.com/advisory/ntap-20200821-0002/"
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        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "Kubernetes",
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      "metrics": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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