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CVE-2020-17489

Published: 11 August 2020

An issue was discovered in certain configurations of GNOME gnome-shell through 3.36.4. When logging out of an account, the password box from the login dialog reappears with the password still visible. If the user had decided to have the password shown in cleartext at login time, it is then visible for a brief moment upon a logout. (If the password were never shown in cleartext, only the password length is revealed.)

Priority

Medium

CVSS 3 base score: 4.3

Status

Package Release Status
gnome-shell
Launchpad, Ubuntu, Debian
Upstream
Released (3.36.5-1)
Ubuntu 20.04 LTS (Focal Fossa)
Released (3.36.4-1ubuntu1~20.04.2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(3.28.4-0ubuntu18.04.3)
Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable
(3.18.5-0ubuntu0.3)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Patches:
Upstream: https://gitlab.gnome.org/GNOME/gnome-shell/-/commit/13137aad9db52223e8b62cecbd3456f4a7f66f04