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Oracle Linux: (CVE-2019-11251) ELSA-2019-4816: kubernetes security update

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Oracle Linux: (CVE-2019-11251) ELSA-2019-4816: kubernetes security update

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
10/09/2019
Created
10/12/2019
Added
10/10/2019
Modified
03/02/2020

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.

Solution(s)

  • oracle-linux-upgrade-kubeadm
  • oracle-linux-upgrade-kubeadm-ha-setup
  • oracle-linux-upgrade-kubeadm-upgrade
  • oracle-linux-upgrade-kubectl
  • oracle-linux-upgrade-kubelet
  • oracle-linux-upgrade-kubernetes

References

  • ELSA-2019-4816
  • CVE-2019-11251

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