CVE-2020-27837
low
CVSS v3
—
CVSS v2
—
VIR risk
2.5
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-27837
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-27837.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 3.38.2.1-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 3.38.2.1-1 |
| debian | bullseye | fixed | 3.38.2.1-1 |
| debian | forky | fixed | 3.38.2.1-1 |
| debian | sid | fixed | 3.38.2.1-1 |
| debian | trixie | fixed | 3.38.2.1-1 |
References
Verify integrity in audit chain (admin only). AS-IS.