Bug 1455094 (CVE-2017-15131)

Summary:	CVE-2017-15131 xdg-user-dirs, gnome-session: Xsession creation of XDG user directories does not honor system umask policy
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	alexl, jmccann, mclasen, rstrode
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	It was found that the system umask policy is not being honored when creating XDG user directories (~/Desktop etc) on first login. This could lead to user's files being inadvertently exposed to other local users.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:13:24 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:	1455095, 1455096, 1532915
Bug Blocks:	1455099, 1498774

Description Adam Mariš 2017-05-24 09:22:13 UTC

It was found that system umask policy is not being honored when creating XDG user directories, since Xsession sources xdg-user-dirs.sh before setting umask policy.

Product bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1412762

Comment 1 Adam Mariš 2017-05-24 09:22:34 UTC

Created gnome-session tracking bugs for this issue:

Affects: fedora-all [bug 1455095]


Created xdg-user-dirs tracking bugs for this issue:

Affects: fedora-all [bug 1455096]

Comment 3 errata-xmlrpc 2018-04-10 08:25:39 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0842 https://access.redhat.com/errata/RHSA-2018:0842