Race Condition Affecting gdm-user-switch-applet package, versions *


Severity

Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.07% (33rd percentile)

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  • Snyk IDSNYK-CENTOS6-GDMUSERSWITCHAPPLET-2022450
  • published26 Jul 2021
  • disclosed11 Dec 2020

Introduced: 11 Dec 2020

CVE-2020-27837  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 gdm-user-switch-applet.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gdm-user-switch-applet package and not the gdm-user-switch-applet package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

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 Scores

version 3.1