CVE-2020-27837

medium

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1906812

Details

Source: Mitre, NVD

Published: 2020-12-28

Updated: 2020-12-30

Risk Information

CVSS v2

Base Score: 4.4

Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Medium