Security restrictions bypass in gnome-shell - CVE-2019-3820
Published: February 14, 2019
Vulnerability identifier: #VU17709
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-3820
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Gnome Development Team
Affected software:
gnome-shell
gnome-shell
Detailed vulnerability description
The vulnerability allows a physical attacker to bypass security restrictions on the system.
The vulnerability exists due to the lock screen feature does not properly restrict all contextual actions. A physical attacker can click on the password text field to bypass the lock screen and re-enable certain keyboard shortcuts, which the attacker can use to perform unauthorized actions on the system.
How to mitigate CVE-2019-3820
Update to version 3.31.90.