Bug 1356828 (CVE-2016-6224)

Summary:	CVE-2016-6224 ecryptfs-utils: ecryptfs-setup-swap improperly configures encrypted swap when using GPT partitioning on a NVMe or MMC drive
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dkholia, esandeen, mhlavink
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:	2016-11-08 09:51:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1356826
Bug Blocks:	1356829

Description Andrej Nemec 2016-07-15 06:48:45 UTC

A vulnerability was found in ecryptfs-setup-swap script that is provided by the upstream ecryptfs-utils project.

When GPT swap partitions are located on NVMe or MMC drives, ecryptfs-setup-swap fails to mark these swap partitions as "no-auto".

As a consequence, when using encrypted home directory with an NVMe or MMC drive, the swap is left unencrypted. There's also a usability issue in that users are erroneously prompted to enter a pass-phrase to unlock their swap partition at boot.

This vulnerability exists due to an incomplete fix for CVE-2015-8946

References:

http://seclists.org/oss-sec/2016/q3/52

Debian bug:

https://bugs.launchpad.net/ecryptfs/+bug/1597154

Fix:

https://bazaar.launchpad.net/~ecryptfs/ecryptfs/trunk/revision/882

Comment 1 Andrej Nemec 2016-07-15 06:49:48 UTC

Created ecryptfs-utils tracking bugs for this issue:

Affects: fedora-all [bug 1356826]