HomeSystemd ProjectCVE-2018-20839

CVE-2018-20839

MEDIUM
4.3CVSS
Published: 2019-05-17
Updated: 2025-05-05
AI Analysis

Description

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 Metrics

Vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector
physical
Complexity
low
Privileges
none
User Action
required
Scope
unchanged
Confidentiality
high
Integrity
none
Availability
none
Weaknesses
NVD-CWE-noinfo

Metadata

Primary Vendor
SYSTEMD_PROJECT
Published
5/17/2019
Last Modified
5/5/2025
Source
NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

systemd_project : systemdnetapp : cn1610_firmwarenetapp : snapprotectnetapp : solidfire_\&_hci_management_node

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Executive Intelligence Brief

CVE-CVE-2018-20839 | MEDIUM Severity | CVEDatabase.com | CVEDatabase.com