Upstream information

CVE-2018-14345 at MITRE


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.

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 6
Vector AV:N/AC:M/Au:S/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 5.5
Access Vector Network Local
Access Complexity High Low
Privileges Required Low Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High None
Availability Impact High None
No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.0
  • sddm >= 0.17.0-lp150.9.3.1
  • sddm-branding-openSUSE >= 0.17.0-lp150.9.3.1
  • sddm-branding-upstream >= 0.17.0-lp150.9.3.1
  • sddm-debuginfo >= 0.17.0-lp150.9.3.1
  • sddm-debugsource >= 0.17.0-lp150.9.3.1