Bug 1276355

Summary:	xscreensaver: Unplugging HDMI cable can cause lock bypass
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	cheese, jrusnack, lkundrak, mtasaka
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	xscreensaver 5.34	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-10-30 09:27:53 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:	1274452, 1276357, 1276359, 1276594
Bug Blocks:

Description Adam Mariš 2015-10-29 14:14:08 UTC

In HDMI multi-screen setup, xscreensaver aborts when the external screen is plugged out, causing the unlocking of desktop on XFCE when asking for password.

Patch:

http://pkgs.fedoraproject.org/cgit/xscreensaver.git/diff/xscreensaver-5.33-0002-Modify-sigchld_hander-in_signal_hander_p-mechanism.patch?id=b57f59f3482fedf70ce7a3541094e2512290139f

CVE request (including steps to reproduce):

http://www.openwall.com/lists/oss-security/2015/10/24/2

Comment 1 Adam Mariš 2015-10-29 14:15:04 UTC

Created xscreensaver tracking bugs for this issue:

Affects: fedora-all [bug 1276357]
Affects: epel-6 [bug 1276359]

Comment 2 Mamoru TASAKA 2015-10-29 22:45:14 UTC

The original bug is bug 1274452 .

Comment 3 Mamoru TASAKA 2015-10-29 22:46:54 UTC

http://www.openwall.com/lists/oss-security/2015/10/29/12
CVE-2015-8025 is now assigned.

Comment 4 Mamoru TASAKA 2015-10-30 09:27:53 UTC

Merging...

*** This bug has been marked as a duplicate of bug 1276592 ***