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CVE-2019-3825

Published: 6 February 2019

A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to expire, at which time they would gain access to the logged-in user's session.

Priority

Medium

Cvss 3 Severity Score

6.4

Score breakdown

Status

Package Release Status
gdm3
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty Does not exist

bionic
Released (3.28.3-0ubuntu18.04.4)
cosmic
Released (3.30.1-1ubuntu5.1)
disco
Released (3.31.4+git20190225-1ubuntu1)
eoan
Released (3.31.4+git20190225-1ubuntu1)
focal
Released (3.31.4+git20190225-1ubuntu1)
impish
Released (3.31.4+git20190225-1ubuntu1)
groovy
Released (3.31.4+git20190225-1ubuntu1)
hirsute
Released (3.31.4+git20190225-1ubuntu1)
xenial Needed

jammy
Released (3.31.4+git20190225-1ubuntu1)
kinetic
Released (3.31.4+git20190225-1ubuntu1)
lunar
Released (3.31.4+git20190225-1ubuntu1)
Patches:
upstream: https://gitlab.gnome.org/GNOME/gdm/commit/7726c81db92d2339fc468ed41c967f5412db66ed
upstream: https://gitlab.gnome.org/GNOME/gdm/commit/d9d22a1c48a528873e3cc84a73fc868507b8dd4d
upstream: https://gitlab.gnome.org/GNOME/gdm/commit/94d9fec87960e3ff5f7b75dadcde2807db148fbd
upstream: https://gitlab.gnome.org/GNOME/gdm/commit/dd45295425c5a843c30aa8797b02d59ff488acb8

Severity score breakdown

Parameter Value
Base score 6.4
Attack vector Physical
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H