Home/CVE/A arbitrary code execution flaw was found in the Fabric 8 Kubernetes client affecting versions 5.0.0-beta-1 and above. D
CVE

CVE-2021-4178

A arbitrary code execution flaw was found in the Fabric 8 Kubernetes client affecting versions 5.0.0-beta-1 and above. D

A arbitrary code execution flaw was found in the Fabric 8 Kubernetes client affecting versions 5.0.0-beta-1 and above. Due to an improperly configured YAML parsing, this will allow a local and privileged attacker to supply malicious YAML.

MEDIUM · CVSS 6.7 EPSS 0.00242
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-502Deserialization of Untrusted Data
CWE-502Deserialization of Untrusted Data
▤

Affected Products & Versions

15
redhat fabric8-kubernetes>= 5.0.1 and < 5.0.3
redhat fabric8-kubernetes>= 5.1.0 and < 5.1.2
redhat fabric8-kubernetes>= 5.2.0 and < 5.3.2
redhat fabric8-kubernetes>= 5.5.0 and < 5.7.4
redhat fabric8-kubernetes>= 5.9.0 and < 5.10.2
redhat fabric8-kubernetes>= 5.11.0 and < 5.11.2
redhat fabric8-kubernetesall versions
redhat a-mq streamsall versions
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven io.fabric8:kubernetes-client MODERATE fixed in 5.0.3
▣

Scoring & Timeline

6.7
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Aug 2022 · 04:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

8
rhsaRHSA-2023:3299Moderate
rhsaRHSA-2022:5532Important
rhsaRHSA-2022:8761Moderate
rhsaRHSA-2022:0469Moderate
rhsaRHSA-2022:0467Moderate
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/CVE-2021-4178Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2034388Issue TrackingVendor Advisory
https://github.com/advisories/GHSA-98g7-rxmf-rrxmThird Party Advisory
https://github.com/fabric8io/kubernetes-client/issues/3653Issue TrackingThird Party Advisory
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