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.

gdm 3.38.2.1 release :

  - Address autologin unlock bug issue (CVE-2020-27837)

  - Translation updates

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Detections

Analytics

CVE-2020-27837

medium

Tenable Plugins

medium