VULNERABILITY INTELLIGENCE

CVE-2018-14345

CVSS score7.5 HIGH

EPSS probability1.18%

CISA KEVNot currently listed

Published2018-07-17

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

An issue was discovered in SDDM through 0.17.0. If configured with ReuseSession=true, the password is not checked for users with an already existing session. Any user with access to the system D-Bus can therefore unlock any graphical session. This is related to daemon/Display.cpp and helper/backend/PamBackend.cpp.

Weakness classification

CWE-287: Improper Authentication
CWE-613: Insufficient Session Expiration

Primary references

cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
cve@mitre.org — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory