Bug 1625885 (CVE-2018-14632) - CVE-2018-14632 atomic-openshift: oc patch with json causes masterapi service crash
Summary: CVE-2018-14632 atomic-openshift: oc patch with json causes masterapi service ...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2018-14632
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1626305 1625939 1625940 1625941 1625942 1625943 1625944 1625945 1626309 1626310 1626311 1626312 1626779
Blocks: 1614951
TreeView+ depends on / blocked
 
Reported: 2018-09-06 07:48 UTC by Jason Shepherd
Modified: 2021-12-10 17:21 UTC (History)
19 users (show)

Fixed In Version: atomic-openshift 3.11
Doc Type: If docs needed, set a value
Doc Text:
An out of bounds write can occur when patching an Openshift object using the 'oc patch' functionality in OpenShift Container Platform 3.x. An attacker can use this flaw to cause a denial of service attack on the Openshift master API service which provides cluster management.
Clone Of:
Environment:
Last Closed: 2018-11-28 06:11:55 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:2654 0 None None None 2018-09-26 04:10:50 UTC
Red Hat Product Errata RHSA-2018:2709 0 None None None 2018-11-11 16:39:17 UTC
Red Hat Product Errata RHSA-2018:2906 0 None None None 2018-11-21 11:56:29 UTC
Red Hat Product Errata RHSA-2018:2908 0 None None None 2018-11-20 03:11:47 UTC

Description Jason Shepherd 2018-09-06 07:48:43 UTC 
A out of bound write can occur when patching a Openshift object using the 'oc patch' functionality in OpenShift Container Platform 3.6 and earlier. An attacker can use this flaw to cause a denial of service attack on the Openshift master api service which provides cluster management.
Comment 1 Jason Shepherd 2018-09-06 07:50:48 UTC 
.
Comment 6 Andrej Nemec 2018-09-06 09:13:28 UTC 
Upstream commit which fixes this issue in json-patch:

https://github.com/evanphx/json-patch/commit/4c9aadca8f89e349c999f04e28199e96e81aba03#diff-65c563bba473be9d94ce4d033f74810e
Comment 7 Jason Shepherd 2018-09-06 09:14:53 UTC 
Upstream commit which fixes this issue in json-patch, which is used by OpenShift Container Platform.

https://github.com/evanphx/json-patch/commit/4c9aadca8f89e349c999f04e28199e96e81aba03#diff-65c563bba473be9d94ce4d033f74810e
Comment 11 Jason Shepherd 2018-09-07 01:28:20 UTC 
Acknowledgments:

Name: Lars Haugan
Comment 16 Jason Shepherd 2018-09-10 22:52:22 UTC 
Statement:

A multi-master Openshift Container Platform cluster is more resilient, however a sustained attack would still have an important impact.
Comment 17 Dominik Mierzejewski 2018-09-11 13:33:43 UTC 
(In reply to Jason Shepherd from comment #1)
> This issue is fixed in OpenShift Container Platform 3.7 and later.

Judging by later comments and the fact that the referenced commit is tagged only for 4.0.0, I don't think the above statement is true. RH Security page for this CVE lists all 3.x versions as Affected.
Comment 18 Dominik Mierzejewski 2018-09-25 13:10:41 UTC 
Jason?
Comment 19 Jason Shepherd 2018-09-25 23:26:34 UTC 
Hi Dominik,

I've removed comment #1 now. You are correct that the issue is not fixed in OCP 3.7 and later. At the time when I wrote that it was believed that it was true, however a subsequent issue was discovered that had the same impact on all released OCP versions. 

Regards,
Jason
Comment 20 errata-xmlrpc 2018-09-26 04:10:43 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.6

Via RHSA-2018:2654 https://access.redhat.com/errata/RHSA-2018:2654
Comment 21 errata-xmlrpc 2018-11-11 16:39:09 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.10

Via RHSA-2018:2709 https://access.redhat.com/errata/RHSA-2018:2709
Comment 23 errata-xmlrpc 2018-11-20 03:11:40 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.9

Via RHSA-2018:2908 https://access.redhat.com/errata/RHSA-2018:2908
Comment 24 errata-xmlrpc 2018-11-21 11:56:20 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.7

Via RHSA-2018:2906 https://access.redhat.com/errata/RHSA-2018:2906
Comment 25 Dominik Mierzejewski 2018-12-07 11:27:15 UTC 
Is this fixed in 3.11? https://access.redhat.com/security/cve/cve-2018-14632 is still listing 3.11 as affected with no fix available.
Comment 26 Sam Fowler 2018-12-11 04:00:14 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHBA-2018:2652 https://access.redhat.com/errata/RHBA-2018:2652
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