Not Failing Securely ('Failing Open') Affecting gdm package, versions <1:3.28.3-39.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
17.56% (95th percentile)

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  • Snyk IDSNYK-RHEL8-GDM-4017772
  • published26 Jul 2021
  • disclosed10 Nov 2020

Introduced: 10 Nov 2020

CVE-2020-16125  (opens in a new tab)
CWE-636  (opens in a new tab)

How to fix?

Upgrade RHEL:8 gdm to version 1:3.28.3-39.el8 or higher.
This issue was patched in RHSA-2021:1586.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gdm package and not the gdm package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

gdm3 versions before 3.36.2 or 3.38.2 would start gnome-initial-setup if gdm3 can't contact the accountservice service via dbus in a timely manner; on Ubuntu (and potentially derivatives) this could be be chained with an additional issue that could allow a local user to create a new privileged account.

CVSS Base Scores

version 3.1