Vulnerability Description
A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Kubernetes-Client | >= 4.2.0, < 4.7.2 |
| Redhat | A-Mq Online | - |
| Redhat | Build Of Quarkus | - |
| Redhat | Codeready Studio | 12.0 |
| Redhat | Descision Manager | 7.0 |
| Redhat | Integration Camel K | - |
| Redhat | Jboss Fuse | 7.0.0 |
| Redhat | Openshift Container Platform | 3.11 |
| Redhat | Process Automation | 7.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1923405Issue TrackingVendor Advisory
- https://github.com/fabric8io/kubernetes-client/issues/2715PatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1923405Issue TrackingVendor Advisory
- https://github.com/fabric8io/kubernetes-client/issues/2715PatchThird Party Advisory
FAQ
What is CVE-2021-20218?
CVE-2021-20218 is a vulnerability with a CVSS score of 7.4 (HIGH). A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to ext...
How severe is CVE-2021-20218?
CVE-2021-20218 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-20218?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Kubernetes-Client, Redhat A-Mq Online, Redhat Build Of Quarkus, Redhat Codeready Studio, Redhat Descision Manager.