vulnerability

Huawei EulerOS: CVE-2018-20839: xorg-x11-server security update

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Severity

CVSS

(AV:N/AC:M/Au:N/C:P/I:N/A:N)

Published

May 17, 2019

Added

Jan 3, 2020

Modified

Apr 1, 2026

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.

Solutions

huawei-euleros-2_0_sp8-upgrade-xorg-x11-server-commonhuawei-euleros-2_0_sp8-upgrade-xorg-x11-server-xephyrhuawei-euleros-2_0_sp8-upgrade-xorg-x11-server-xorghuawei-euleros-2_0_sp8-upgrade-xorg-x11-server-xvfbhuawei-euleros-2_0_sp8-upgrade-xorg-x11-server-xwayland

References

CVE-2018-20839
https://attackerkb.com/topics/CVE-2018-20839
EULEROS-EulerOS-SA-2020-1037
EUVD-EUVD-2018-13379
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-13379

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