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.

Category

6.4
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory redhat.com
Affected: n/a gdm
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1906812 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-27837?
CVE-2020-27837 has been scored as a medium severity vulnerability.
How to fix CVE-2020-27837?
To fix CVE-2020-27837, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-27837 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-27837 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-27837?
CVE-2020-27837 affects n/a gdm.
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