Bug 1886637 (CVE-2020-8564) - CVE-2020-8564 kubernetes: Docker config secrets leaked when file is malformed and loglevel >= 4
Summary: CVE-2020-8564 kubernetes: Docker config secrets leaked when file is malformed...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-8564
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1878091 1887306 1887308 1887309 1887310 1887311 1889786 1889954 1889955 1889956 1889957 1898635
Blocks: 1883756
TreeView+ depends on / blocked
 
Reported: 2020-10-09 01:44 UTC by Sam Fowler
Modified: 2021-08-25 15:16 UTC (History)
21 users (show)

Fixed In Version: kubernetes 1.19.3, kubernetes 1.18.10, kubernetes 1.17.13
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in kubernetes. In Kubernetes, if the logging level is to at least 4, processing a malformed docker config file will result in the contents of the docker config file being leaked, which can include pull secrets or other registry credentials. This can occur with client tools like `kubectl`, or other components that use registry credentials in a docker config file.
Clone Of:
Environment:
Last Closed: 2020-10-27 20:21:53 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:4297 0 None None None 2020-10-27 14:53:57 UTC
Red Hat Product Errata RHSA-2020:5259 0 None None None 2020-12-14 13:50:20 UTC
Red Hat Product Errata RHSA-2020:5359 0 None None None 2020-12-15 20:28:47 UTC
Red Hat Product Errata RHSA-2021:0171 0 None None None 2021-01-25 20:02:14 UTC
Red Hat Product Errata RHSA-2021:0172 0 None None None 2021-01-25 19:43:36 UTC
Red Hat Product Errata RHSA-2021:0281 0 None None None 2021-02-03 10:11:36 UTC
Red Hat Product Errata RHSA-2021:3193 0 None None None 2021-08-25 15:16:50 UTC

Description Sam Fowler 2020-10-09 01:44:23 UTC 
In Kubernetes, if the logging level is to at least 4, processing a malformed docker config file will result in the contents of the docker config file being leaked, which can include pull secrets or other registry credentials.

This can occur with client tools like `kubectl`, or other components that use registry credentials in a docker config file.
Comment 2 Sam Fowler 2020-10-09 01:53:40 UTC 
Upstream Fix:

https://github.com/kubernetes/kubernetes/pull/94712
Comment 3 Sam Fowler 2020-10-09 01:53:45 UTC 
Acknowledgments:

Name: the Kubernetes Product Security Committee
Upstream: Nikolaos Moraitis (Red Hat)
Comment 8 Sam Fowler 2020-10-15 23:34:04 UTC 
External References:

https://groups.google.com/g/kubernetes-announce/c/ScdmyORnPDk
https://github.com/kubernetes/kubernetes/issues/95622
Comment 12 errata-xmlrpc 2020-10-27 14:53:56 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2020:4297 https://access.redhat.com/errata/RHSA-2020:4297
Comment 13 Product Security DevOps Team 2020-10-27 20:21:53 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-8564
Comment 15 errata-xmlrpc 2020-12-14 13:50:18 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2020:5259 https://access.redhat.com/errata/RHSA-2020:5259
Comment 16 errata-xmlrpc 2020-12-15 20:29:16 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.5

Via RHSA-2020:5359 https://access.redhat.com/errata/RHSA-2020:5359
Comment 17 errata-xmlrpc 2021-01-25 19:43:35 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2021:0172 https://access.redhat.com/errata/RHSA-2021:0172
Comment 18 errata-xmlrpc 2021-01-25 20:02:55 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.6

Via RHSA-2021:0171 https://access.redhat.com/errata/RHSA-2021:0171
Comment 19 errata-xmlrpc 2021-02-03 10:11:32 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.4

Via RHSA-2021:0281 https://access.redhat.com/errata/RHSA-2021:0281
Comment 21 errata-xmlrpc 2021-08-25 15:16:48 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2021:3193 https://access.redhat.com/errata/RHSA-2021:3193
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