Bug 1306293 (CVE-2016-2312)

Summary:	CVE-2016-2312 plasma-workspace, kscreenlocker: Lock screen bypass
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:	jgrulich, kde-sig, ltinkl, me, rdieter, than
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	plasma-workspace 5.5.0, kscreenlocker 5.5.5	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-03-07 17:34:14 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:	1306294, 1306295
Bug Blocks:

Description Adam Mariš 2016-02-10 13:39:42 UTC

It was found that turning all screens off while the lock screen is shown can result in the screen being unlocked when turning a screen on again. An unauthorized user might gain access to a locked system. Physical access to the hardware is required.

External Reference:

https://www.kde.org/info/security/advisory-20160209-1.txt

CVE assignment:

http://seclists.org/oss-sec/2016/q1/300

Comment 1 Adam Mariš 2016-02-10 13:40:16 UTC

Created kscreenlocker tracking bugs for this issue:

Affects: fedora-all [bug 1306295]

Comment 2 Adam Mariš 2016-02-10 13:40:23 UTC

Created plasma-workspace tracking bugs for this issue:

Affects: fedora-all [bug 1306294]

Comment 3 Fedora Update System 2016-02-21 02:21:39 UTC

kscreenlocker-5.5.4-3.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 4 Fedora Update System 2016-02-21 16:26:52 UTC

kscreenlocker-5.5.4-3.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Rex Dieter 2016-03-07 17:34:14 UTC

Fixed since 02-21