CVE-2019-3820

CVE-2019-3820 describes a vulnerability in gnome-shell versions 3.15.91 and later, affecting various distributions including Canonical, GNOME, and openSUSE. This flaw allowed an attacker with physical access to a locked workstation to bypass some lock screen restrictions by using specific keyboard shortcuts, potentially leading to limited disclosure, modification, or denial of service. Rated as Medium severity (CVSS 4.3), it requires physical access and has low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage.