CVE catalog

CVE-2018-14345

sddm: CVE-2018-14345

Severity: Medium · CVSS 5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published: Jul 17, 2018, 2:29:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.18% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	sddm	sid	`0.21.0+git20260819.da0b64d-1`	fixed
Debian	sddm	forky	`0.21.0+git20260819.da0b64d-1`	fixed
Debian	sddm	trixie	`0.21.0+git20250502.4fe234b-2`	fixed
Debian	sddm	bookworm	`0.19.0-5`	fixed
Opensuse	sddm	tumbleweed	`0.19.0-4.2`	fixed
Ubuntu	sddm	16.04	`0.11.0-0ubuntu11`	vulnerable
Ubuntu	sddm	16.04	`0.11.0-0ubuntu12`	vulnerable
Ubuntu	sddm	16.04	`0.13.0-1ubuntu1`	vulnerable
Ubuntu	sddm	16.04	`0.13.0-1ubuntu3`	vulnerable
Ubuntu	sddm	16.04	`0.13.0-1ubuntu4`	vulnerable
Ubuntu	sddm	16.04	`0.13.0-1ubuntu5`	vulnerable
Ubuntu	sddm	18.04	`0.14.0-4ubuntu1`	vulnerable
Ubuntu	sddm	18.04	`0.14.0-4ubuntu2`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu1`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu2`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu3`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu4`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu5`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu6`	vulnerable
Ubuntu	sddm	18.04	`0.17.0-1ubuntu7`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	sddm	source	sid	`0.18.0-1`	not yet assigned	Not reported	Not reported
Debian	sddm	source	forky	`0.18.0-1`	not yet assigned	Not reported	Not reported
Debian	sddm	source	trixie	`0.18.0-1`	not yet assigned	Not reported	Not reported
Debian	sddm	source	bookworm	`0.18.0-1`	not yet assigned	Not reported	Not reported
Opensuse	sddm	rpm	tumbleweed	`0.19.0-4.2`	Not reported	OPENSUSE-SU-2024:11376-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[sddm-branding-openSUSE]Unknown
Source package: [sddm]
Details (1)
- 0.21.0+git57-1.1 · noarch · tumbleweed
  Unknown · Fixed: 0.19.0-4.2
  Version impact unknown
  dsa · sddm · opensuse · tumbleweed
[sddm-greeter-qt5]Unknown
Source package: [sddm]
Details (1)
- 0.21.0+git57-1.1 · x86_64 · tumbleweed
  Unknown · Fixed: 0.19.0-4.2
  Version impact unknown
  dsa · sddm · opensuse · tumbleweed
[sddm]Fixed
Source package: [sddm]
Details (1)
- 0.21.0+git57-1.1 · x86_64 · tumbleweed
  Fixed · Fixed: 0.19.0-4.2
  dsa · sddm · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[sddm]Fixed
Details (2)
- 0.19.0-5 · amd64 · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · arm64 · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-debian-elarun]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-debian-maui]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-elarun]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-maldives]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-maui]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
[sddm-theme-maya]Fixed
Source package: [sddm]
Details (2)
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12
- 0.19.0-5 · all · bookworm
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · bookworm; dsa · sddm · debian · 12

[Debian 13 (Trixie)]

[sddm]Fixed
Details (2)
- 0.21.0+git20250502.4fe234b-2 · amd64 · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · arm64 · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-debian-elarun]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-debian-maui]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-elarun]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-maldives]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-maui]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
[sddm-theme-maya]Fixed
Source package: [sddm]
Details (2)
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13
- 0.21.0+git20250502.4fe234b-2 · all · trixie
  Fixed · Fixed: 0.18.0-1
  dsa · sddm · debian · 13

Observed: Oct 23, 2026, 5:34:37 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]