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VULNERABILITIES

CVE-2018-20839 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993 CVEIssue TrackingThird Party Advisory
https://github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322f CVEPatch
https://github.com/systemd/systemd/pull/12378 CVEIssue TrackingPatch
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E CVEMailing List
https://security.netapp.com/advisory/ntap-20190530-0002/ CVEThird Party Advisory

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
systemd project systemd
242 -

CPE

  • cpe:2.3:a:systemd_project:systemd:242:-:*:*:*:*:*:*

Remediation

  • No remediation found in references.
netapp cn1610 firmware
All versions

CPE

  • cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
netapp cn1610
All versions

CPE

  • cpe:2.3:h:netapp:cn1610:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
netapp snapprotect
All versions

CPE

  • cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
netapp solidfire & hci management node
All versions

CPE

  • cpe:2.3:a:netapp:solidfire_&_hci_management_node:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

13 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-20839
NVD Published Date:
May 17, 2019
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-20839 Details - Not Deferred