Upstream information

CVE-2018-14345 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
CVSS detail 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
CVSS detail National Vulnerability Database SUSE
Base Score 7.5 5.5
Vector CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network Local
Attack 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
CVSSv3 Version 3 3
SUSE Bugzilla entry: 1177201 [NEW]

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
 Patchnames:
openSUSE-2019-594
openSUSE Leap 15.2
  • sddm >= 0.18.0-lp152.4.3
  • sddm-branding-openSUSE >= 0.18.0-lp152.4.3
 Patchnames:
openSUSE Leap 15.2 GA sddm-0.18.0-lp152.4.11
openSUSE Leap 15.3
  • sddm >= 0.18.0-lp153.1.31
  • sddm-branding-openSUSE >= 0.18.0-lp153.1.31
 Patchnames:
openSUSE Leap 15.3 GA sddm-0.18.0-lp153.1.31
openSUSE Leap 15.4
  • sddm >= 0.19.0-lp154.3.6
  • sddm-branding-openSUSE >= 0.19.0-lp154.3.6
 Patchnames:
openSUSE Leap 15.4 GA sddm-0.19.0-lp154.3.6
openSUSE Tumbleweed
  • sddm >= 0.19.0-4.2
  • sddm-branding-openSUSE >= 0.19.0-4.2
  • sddm-branding-upstream >= 0.19.0-4.2
 Patchnames:
openSUSE-Tumbleweed-2024-11376

SUSE Timeline for this CVE

CVE page created: Tue Jul 17 14:21:26 2018
CVE page last modified: Mon Oct 6 19:17:18 2025