Bug 1726565 (CVE-2019-13178)

Summary:	CVE-2019-13178 calamares: race condition in modules/luksbootkeyfile/main.py
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	damianatorrpm, kevin, mattia.verga, me, teward
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-07-12 13:08:16 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Bug Depends On:	1726566
Bug Blocks:

Description Dhananjay Arunesh 2019-07-03 07:56:21 UTC

modules/luksbootkeyfile/main.py in Calamares through 3.2.4 has a race condition between the time when the LUKS encryption keyfile is created and when secure permissions are set.

Reference:
https://github.com/calamares/calamares/issues/1190
https://www.pavelkogan.com/2014/05/23/luks-full-disk-encryption/
https://www.pavelkogan.com/2015/01/25/linux-mint-encryption/

Comment 1 Dhananjay Arunesh 2019-07-03 07:56:37 UTC

Created calamares tracking bugs for this issue:

Affects: fedora-all [bug 1726566]

Comment 2 Kevin Kofler 2019-07-03 10:08:45 UTC

I will prepare an update when upstream releases a release with the fix, which should happen this week.

Comment 3 Kevin Kofler 2019-07-03 11:53:30 UTC

Please note that the upstream version numbers in both CVEs are incorrect, all versions of Calamares up to and including 3.2.10 are affected.

Comment 4 Thomas Ward 2019-07-09 16:18:39 UTC

Please note that MITRE has updated the CVEs to reflect proper affected versions, and Calamares upstream has released a fix in version 3.2.11

Comment 5 Kevin Kofler 2019-07-09 17:05:34 UTC

Right. I have already queued Calamares 3.2.11 updates for Fedora 29 and 30 (and built it for Rawhide, too, of course), see bug #1726566.

Comment 6 Product Security DevOps Team 2019-07-12 13:08:16 UTC

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