CVE-2021-4178: Code Injection
First published: Mon Dec 20 2021(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jenkins | <2-plugins-0:4.13.1684911916-1.el8 | 2-plugins-0:4.13.1684911916-1.el8 |
| redhat/kubernetes-client | <5.0.3 | 5.0.3 |
| redhat/kubernetes-client | <5.1.2 | 5.1.2 |
| redhat/kubernetes-client | <5.3.2 | 5.3.2 |
| redhat/kubernetes-client | <5.4.2 | 5.4.2 |
| redhat/kubernetes-client | <5.7.4 | 5.7.4 |
| redhat/kubernetes-client | <5.8.1 | 5.8.1 |
| redhat/kubernetes-client | <5.11.2 | 5.11.2 |
| maven/io.fabric8:kubernetes-client | >=5.11.0<5.11.2 | 5.11.2 |
| maven/io.fabric8:kubernetes-client | >=5.9.0<5.10.2 | 5.10.2 |
| maven/io.fabric8:kubernetes-client | >=5.8.0<5.8.1 | 5.8.1 |
| maven/io.fabric8:kubernetes-client | >=5.5.0<5.7.4 | 5.7.4 |
| maven/io.fabric8:kubernetes-client | >=5.2.0<5.3.2 | 5.3.2 |
| maven/io.fabric8:kubernetes-client | >=5.1.0<5.1.2 | 5.1.2 |
| maven/io.fabric8:kubernetes-client | >=5.0.0-beta-1<5.0.3 | 5.0.3 |
| Red Hat Fabric8 Kubernetes | >=5.0.1<5.0.3 | |
| Red Hat Fabric8 Kubernetes | >=5.1.0<5.1.2 | |
| Red Hat Fabric8 Kubernetes | >=5.2.0<5.3.2 | |
| Red Hat Fabric8 Kubernetes | >=5.5.0<5.7.4 | |
| Red Hat Fabric8 Kubernetes | >=5.9.0<5.10.2 | |
| Red Hat Fabric8 Kubernetes | >=5.11.0<5.11.2 | |
| Red Hat Fabric8 Kubernetes | =5.0.0-beta1 | |
| Red Hat Fabric8 Kubernetes | =5.8.0 | |
| Red Hat AMQ Streams | =2.0.1 | |
| Red Hat Quarkus | =2.2.5 | |
| Red Hat Decision Manager | =7.0 | |
| Red Hat Fuse | =7.11 | |
| Apache Camel | ||
| Apache Camel | =2.2.1 | |
| redhat openshift application runtimes | ||
| Red Hat Process Automation Manager | =7.0 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2021-4178
- https://github.com/fabric8io/kubernetes-client/issues/3653
- https://access.redhat.com/security/cve/cve-2021-4178
- https://www.mend.io/vulnerability-database/CVE-2021-4178
- https://bugzilla.redhat.com/show_bug.cgi?id=2034388
- https://github.com/fabric8io/kubernetes-client/commit/445103004d1ed3153d5abb272473451d05891e39
- https://github.com/advisories/GHSA-98g7-rxmf-rrxm (Advisory)
- https://access.redhat.com/security/cve/CVE-2021-4178
- https://access.redhat.com/errata/RHSA-2022:0467
- https://access.redhat.com/errata/RHSA-2022:0469
- https://access.redhat.com/errata/RHSA-2022:0589
- https://access.redhat.com/errata/RHSA-2022:1013
- https://access.redhat.com/errata/RHSA-2022:5532
- https://access.redhat.com/errata/RHSA-2022:8761
- https://access.redhat.com/errata/RHSA-2023:3299
- https://www.cve.org/CVERecord?id=CVE-2021-4178 https://nvd.nist.gov/vuln/detail/CVE-2021-4178
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is CVE-2021-4178?
CVE-2021-4178 is an arbitrary code execution flaw in the Fabric 8 Kubernetes client affecting versions 5.0.0-beta-1 and above.
How does CVE-2021-4178 affect the Fabric 8 Kubernetes client?
CVE-2021-4178 allows a local and privileged attacker to supply malicious YAML due to an improperly configured YAML parsing.
What is the severity of CVE-2021-4178?
The severity of CVE-2021-4178 is medium with a CVSS score of 6.7.
How can I fix CVE-2021-4178 in the Fabric 8 Kubernetes client?
To fix CVE-2021-4178, update the Fabric 8 Kubernetes client to version 5.0.3 or higher.
Where can I find more information about CVE-2021-4178?
More information about CVE-2021-4178 can be found in the following references: [link_1], [link_2], [link_3].
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