CVE-2017-12164

gdm: lock screen can be circumvented when autologin is set

Published Jul 26, 2018 CVSS 3.0 · 4.1 Medium EPSS < 1% KEV · Not listed
Description
A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2017-3741 A flaw was discovered in gdm 3.24.1 where gdm greeter was no longer setting the ran_once boolean during autologin. If autologin was enabled for a victim, an attacker could simply select 'login as another user' to unlock their screen.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 5, 2024, 6:28 PM
Reserved
Aug 1, 2017, 12:00 AM
Status
Modified
Published
Jul 26, 2018, 4:29 PM
Modified
Jun 17, 2026, 1:02 AM
Severity
Moderate
Public date
Jun 14, 2017, 12:00 AM