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MEDIUM · 6.4

CVE-2020-27837

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...

Vulnerability 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.

CVSS Score

6.4

MEDIUM

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
PHYSICAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
GnomeGnome Display Manager< 3.38.2.1

Related Weaknesses (CWE)

CWE-362

References

FAQ

What is CVE-2020-27837?

CVE-2020-27837 is a vulnerability with a CVSS score of 6.4 (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...

How severe is CVE-2020-27837?

CVE-2020-27837 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-27837?

Check the references section above for vendor advisories and patch information. Affected products include: Gnome Gnome Display Manager.