CVE-2018-20839
MEDIUM
4.3
CVSS Score
Published: May 17, 2019 at 03:39 AM UTC
Updated: June 17, 2026 at 01:53 AM UTC
5 products affected across 2 vendorsSolidfire & Hci Management NodeSystemdCN1610 Firmware
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Severity
MEDIUM4.3
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
All versions
All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (6)
VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/108389x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993x_refsource_MISCPatch
Source: [email protected]
https://github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322fx_refsource_MISCIssue TrackingPatch
Source: [email protected]
https://github.com/systemd/systemd/pull/12378Mailing Listx_refsource_MLIST
Source: [email protected]
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3Ex_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20190530-0002/CVSS
- Attack Vector
- PHYSICAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusANALYZED
CWE
NVD-CWE-noinfo
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