Vulnerability Description
The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place a file outside of the destination directory specified in the kubectl cp invocation. This could be used to allow an attacker to place a nefarious file using a symlink, outside of the destination tree.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | >= 1.13.0, < 1.13.11 |
Related Weaknesses (CWE)
References
- https://github.com/kubernetes/kubernetes/issues/87773Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJMailing ListThird Party Advisory
- https://github.com/kubernetes/kubernetes/issues/87773Third Party Advisory
- https://groups.google.com/d/msg/kubernetes-announce/YYtEFdFimZ4/nZnOezZuBgAJMailing ListThird Party Advisory
FAQ
What is CVE-2019-11251?
CVE-2019-11251 is a vulnerability with a CVSS score of 4.8 (MEDIUM). The Kubernetes kubectl cp command in versions 1.1-1.12, and versions prior to 1.13.11, 1.14.7, and 1.15.4 allows a combination of two symlinks provided by tar output of a malicious container to place ...
How severe is CVE-2019-11251?
CVE-2019-11251 has been rated MEDIUM with a CVSS base score of 4.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-11251?
Check the references section above for vendor advisories and patch information. Affected products include: Kubernetes Kubernetes.