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- From: Andrew K Adams <akadams@psc.edu>
- To: cv-announce@trustedci.org
- Cc: "Andrew K. Adams" <akadams@psc.edu>
- Subject: [cv-announce-l] kubectl Path Traversal (CVE-2019-11246)
- Date: Tue, 25 Jun 2019 16:36:51 -0400
- Authentication-results: external-relay.iu.edu; spf=PermError smtp.pra=akadams@psc.edu; spf=SoftFail smtp.mailfrom=akadams@psc.edu; spf=None smtp.helo=postmaster@relay9-d.mail.gandi.net
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CI Operators:
A high-severity path traversal vulnerability in Kubernetes (CVE-2019-11246) has been announced [1][2][3]. The issue, in the ‘kubectl cp’ command, arises from a directory traversal bug when processing tar files moved out of the container, and it affects the client’s host.
Impact:
A malicious container can create or replace arbitrary files on a user’s host.
Affected Software:
* Kubernetes 1.12.x < 1.12.9
* Kubernetes 1.13.x < 1.13.6
* Kubernetes 1.14.x < 1.14.2
Run ‘kubectl version --client’ to view version information [4].
Recommendation:
Upgrade to Kubernetes 1.12.9, 1.13.6 or 1.14.2.
References:
[1] https://seclists.org/oss-sec/2019/q2/194
[2] https://www.infosecurity-magazine.com/news/incomplete-fix-leads-to-new-1-1
[3] https://groups.google.com/forum/#!topic/kubernetes-security-announce/NLs2TGbfPdo
[4] https://kubernetes.io/docs/tasks/tools/install-kubectl/
How Trusted CI can help:
The potential impact of any vulnerability, and therefore the appropriate response, depends in part on operational conditions that are unique to each cyberinfrastructure deployment. Trusted CI can not provide a one-size-fits-all severity rating and response recommendation for all NSF cyberinfrastructure. Please contact us (http://trustedci.org/help/) if you need assistance with assessing the potential impact of this vulnerability in your environment and/or you have additional information about this issue that should be shared with the community.
- [cv-announce-l] kubectl Path Traversal (CVE-2019-11246), Andrew K Adams, 06/25/2019
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