CVE-2019-11251

CVE Details

Release Date:

2020-02-03

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.

See more information about CVE-2019-11251 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	5.7	Base Metrics:	AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
Access Vector:	Network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	High	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kubeadm-ha-setup)	ELSA-2019-4816	2020-01-31
Oracle Linux version 7 (kubeadm-upgrade)	ELSA-2019-4816	2020-01-31
Oracle Linux version 7 (kubernetes)	ELSA-2019-4816	2020-01-31

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team