CVE Database›Document archive›CVE-2019-3825

CVE-2019-3825

gdm: lock screen bypass when timed login is enabled

Loading…

Severity

Moderate

Red Hat Product Security

6.3

CVSS 3.0

Review impact separately from score.

Published · February 6, 2019

Updated · February 24, 2026

Description

A vulnerability was discovered in gdm 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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Ensure timed login is not enabled in gdm configuration, by checking the output of:

grep TimedLogin /etc/gdm/custom.conf

CVSS / CWE

CVSS 3.0 · 6.3
CVSS:3.0/AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-287 · Improper Authentication