Medium severity4.3NVD Advisory· Published May 17, 2019· Updated Jun 17, 2026
CVE-2018-20839
CVE-2018-20839
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
6- cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:systemd_project:systemd:242:-:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:systemd_project:systemd:242:-:*:*:*:*:*:*
- (no CPE)range: <242
- cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:*
- systemd/systemddescription
Patches
Vulnerability mechanics
References
6- github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322fnvdPatch
- github.com/systemd/systemd/pull/12378nvdIssue TrackingPatch
- www.securityfocus.com/bid/108389nvdBroken LinkThird Party AdvisoryVDB Entry
- bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993nvdIssue TrackingThird Party Advisory
- security.netapp.com/advisory/ntap-20190530-0002/nvdThird Party Advisory
- lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3EnvdMailing List
News mentions
0No linked articles in our index yet.