Upstream information

CVE-2018-20839 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 9.8
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
SUSE Bugzilla entry: 1135604 [IN_PROGRESS]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
CaaS Platform 1.0 systemd Not affected
CaaS Platform 2.0 systemd Not affected
CaaS Platform 3.0 systemd Not affected
OpenStack Cloud Magnum Orchestration 7.0 systemd Not affected
SUSE Linux Enterprise Desktop 12 SP3 systemd Not affected
SUSE Linux Enterprise Desktop 12 SP4 systemd Not affected
SUSE Linux Enterprise High Performance Computing 12 systemd Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA systemd Not affected
SUSE Linux Enterprise SDK 12 SP3 systemd Not affected
SUSE Linux Enterprise SDK 12 SP4 systemd Not affected
SUSE Linux Enterprise Server 12 GA LTSS systemd Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS systemd Not affected
SUSE Linux Enterprise Server 12 SP3 systemd Not affected
SUSE Linux Enterprise Server 12 SP4 systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 systemd Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 systemd Not affected