Bug 1219548 (CVE-2015-3164)

Summary:	CVE-2015-3164 xorg-x11-server: Xwayland allows unconditional open access to display
Product:	[Other] Security Response	Reporter:	Martin Prpič <mprpic>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	carnil, rstrode, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:41:06 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:	1232131
Bug Blocks:	1225834

Description Martin Prpič 2015-05-07 14:53:00 UTC

It was found that Xwayland allowed users to access a display even if it was started with the "-auth" option.

Furthermore, current wayland compositors (including weston, mutter, and, probably, all others), neglect to start Xwayland with "-auth".

Comment 3 Tomas Hoger 2015-06-16 06:25:08 UTC

Upstream advisory:

http://lists.x.org/archives/xorg-announce/2015-June/002611.html

Upstream commits:

http://cgit.freedesktop.org/xorg/xserver/commit/?id=c4534a38b68aa07fb82318040dc8154fb48a9588
http://cgit.freedesktop.org/xorg/xserver/commit/?id=4b4b9086d02b80549981d205fb1f495edc373538
http://cgit.freedesktop.org/xorg/xserver/commit/?id=76636ac12f2d1dbdf7be08222f80e7505d53c451

Comment 4 Tomas Hoger 2015-06-16 06:27:46 UTC

Statement:

Not vulnerable. This issue did not affect the versions of xorg-x11-server as shipped with Red Hat Enterprise Linux 5, 6, and 7.

Comment 5 Tomas Hoger 2015-06-16 06:28:05 UTC

Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 1232131]