Bug 1669391 (CVE-2019-3820) - CVE-2019-3820 gnome-shell: partial lock screen bypass
Summary: CVE-2019-3820 gnome-shell: partial lock screen bypass
Status: NEW
Alias: CVE-2019-3820
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard: impact=moderate,public=20190205:1200,...
Keywords: Security
Depends On: 1669393 1672814 1672815
Blocks: 1669389
TreeView+ depends on / blocked
 
Reported: 2019-01-25 05:52 UTC by Doran Moppert
Modified: 2019-06-08 23:49 UTC (History)
5 users (show)

(edit)
A vulnerability was found where the gnome-shell lock screen, since version 3.15.91, does not properly restrict all contextual actions.  An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts and potentially other actions.
Clone Of:
(edit)
Last Closed:


Attachments (Terms of Use)

Description Doran Moppert 2019-01-25 05:52:45 UTC
It was discovered that the gnome-shell lock screen since version 3.15.91 did not properly restrict all contextual actions.  An attacker with physical access to a locked workstation could invoke certain keyboard shortcuts, and potentially other actions.

This issue was introduced with the following ticket & commit:

https://bugzilla.gnome.org/show_bug.cgi?id=745039
https://gitlab.gnome.org/GNOME/gnome-shell/commit/c79d24b60e773262091023feb6ee1b3deef1c471

Upstream issue:

https://gitlab.gnome.org/GNOME/gnome-shell/issues/851

Comment 4 Doran Moppert 2019-02-06 00:49:51 UTC
External References:

https://gitlab.gnome.org/GNOME/gnome-shell/issues/851

Comment 5 Doran Moppert 2019-02-06 00:50:27 UTC
Created gnome-shell tracking bugs for this issue:

Affects: fedora-all [bug 1672815]

Comment 7 Doran Moppert 2019-02-15 00:30:27 UTC
Acknowledgments:

Name: Ray Strode (The GNOME Project)
Upstream: Maxime Vellard


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