vulnerability
Red Hat: CVE-2018-20839: systemd: mishandling of the current keyboard mode check leading to passwords being disclosed in cleartext to attacker
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:P/I:N/A:N) | May 17, 2019 | Jul 9, 2025 | Jul 9, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
Published
May 17, 2019
Added
Jul 9, 2025
Modified
Jul 9, 2025
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.
Solution
no-fix-redhat-rpm-package
References
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