vulnerability
Red Hat: CVE-2020-27837: gdm: lock screen bypass when autologin is set
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:M/Au:N/C:C/I:C/A:C) | Dec 28, 2020 | Jul 9, 2025 | Jul 10, 2025 |
Severity
7
CVSS
(AV:L/AC:M/Au:N/C:C/I:C/A:C)
Published
Dec 28, 2020
Added
Jul 9, 2025
Modified
Jul 10, 2025
Description
A flaw was found in GDM in versions prior to 3.38.2.1. A race condition in the handling of session shutdown makes it possible to bypass the lock screen for a user that has autologin enabled, accessing their session without authentication. This is similar to CVE-2017-12164, but requires more difficult conditions to exploit.
Solution
no-fix-redhat-rpm-package
References
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