CVE-2019-11244: kubectl creates world-writeable cached schema files
In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir (defaulting to $HOME/.kube/http-cache), written with world-writeable permissions (rw-rw-rw-). If --cache-dir is specified and pointed at a different location accessible to other users/groups, the written files may be modified by other users/groups and disrupt the kubectl invocation.
Other sources
In Kubernetes v1.8.x-v1.14.x, schema info is cached by kubectl in the location specified by --cache-dir (defaulting to $HOME/.kube/http-cache), written with world-writeable permissions (rw-rw-rw-). If --cache-dir is specified and pointed at a different location accessible to other users/groups, the written files may be modified by other users/groups and disrupt the kubectl invocation.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-11244?
CVE-2019-11244 is a vulnerability in Kubernetes v1.8.x-v1.14.x where schema info is cached with world-writeable permissions, potentially allowing unauthorized access.
How severe is CVE-2019-11244?
CVE-2019-11244 has a severity level of medium.
Which versions of Kubernetes are affected by CVE-2019-11244?
Versions 1.8.x to 1.14.x of Kubernetes are affected by CVE-2019-11244.
How can I fix CVE-2019-11244?
To fix CVE-2019-11244, update to version 1.12.9 of the go/k8s.io/client-go package or any version higher than 1.14.1 of Kubernetes.
Where can I find more information about CVE-2019-11244?
You can find more information about CVE-2019-11244 at the following references: - [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-11244) - [GitHub issue](https://github.com/kubernetes/kubernetes/issues/76676) - [GitHub pull request](https://github.com/kubernetes/kubernetes/pull/77874)