CVE-2020-27837
MEDIUM6.4EPSS 0.04%Published: 12/28/2020Modified: 4/28/2026
Also known as:DEBIAN-CVE-2020-27837
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.
Affected packages (1)
- Debian/gdm3from 0, < 3.38.2.1-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.4 | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |