Link Following The advisory has been revoked - it doesn't affect any version of package kubernetes  (opens in a new tab)


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  • Snyk IDSNYK-DEBIAN11-KUBERNETES-602485
  • published19 Aug 2020
  • disclosed1 Apr 2019

Introduced: 1 Apr 2019

CVE-2019-1002101  (opens in a new tab)
CWE-59  (opens in a new tab)

Amendment

The Debian security team deemed this advisory irrelevant for Debian:11.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubernetes package and not the kubernetes package as distributed by Debian.

The kubectl cp command allows copying files between containers and the user machine. To copy files from a container, Kubernetes creates a tar inside the container, copies it over the network, and kubectl unpacks it on the user’s machine. If the tar binary in the container is malicious, it could run any code and output unexpected, malicious results. An attacker could use this to write files to any path on the user’s machine when kubectl cp is called, limited only by the system permissions of the local user. The untar function can both create and follow symbolic links. The issue is resolved in kubectl v1.11.9, v1.12.7, v1.13.5, and v1.14.0.