VDB
CVE-2020-27837
CVE-2020-27837
PUBLISHED
CVSS 6.400000095367432 MEDIUM
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.
EPSS 0.23% · 13.6th percentile
Risk Scores
CVSS 3.1
6.400000095367432
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.23%
13.6th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | gdm3 | 0, 3.34.1-1ubuntu1, 3.36.3-0ubuntu0.20.04.3 |
| Ubuntu:22.04:LTS | gdm3 | 0, 41~rc-0ubuntu2, 41.0-3ubuntu1 |
Timeline
- Dec 28, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Dec 29, 2021 EPSS Score
- Mar 2, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-27837 advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27837 third-party-advisory