Information Exposure Affecting systemd-pam package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-CENTOS8-SYSTEMDPAM-1940255
  • published26 Jul 2021
  • disclosed17 May 2019

Introduced: 17 May 2019

CVE-2018-20839  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 systemd-pam.

NVD Description

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

systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.

CVSS Scores

version 3.1