CVE catalog

CVE-2018-14424

gdm3: CVE-2018-14424

Severity: High · CVSS 7CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Aug 13, 2018, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.54% · Oct 25, 2026

The daemon in GDM through 3.29.1 does not properly unexport display objects from its D-Bus interface when they are destroyed, which allows a local attacker to trigger a use-after-free via a specially crafted sequence of D-Bus method calls, resulting in a denial of service or potential code execution.

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	gdm3	sid	`51.1-1`	fixed
Debian	gdm3	forky	`51.1-1`	fixed
Debian	gdm3	trixie	`48.0-2`	fixed
Debian	gdm3	bookworm	`43.0-3`	fixed
Ubuntu	gdm3	18.04	`3.26.1-3ubuntu2`	vulnerable
Ubuntu	gdm3	18.04	`3.26.1-3ubuntu3`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-2ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-2ubuntu2`	vulnerable
Ubuntu	gdm3	18.04	`3.27.90-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.27.92-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.28.0-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.2`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.3`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.4`	fixed
Ubuntu	gdm3	16.04	`3.18.0-2ubuntu1`	vulnerable
Ubuntu	gdm3	16.04	`3.18.0-2ubuntu2`	vulnerable
Ubuntu	gdm3	16.04	`3.18.0-2ubuntu3`	vulnerable
Ubuntu	gdm3	16.04	`3.18.0-2ubuntu4`	vulnerable
Ubuntu	gdm3	16.04	`3.18.2-1ubuntu1`	vulnerable
Ubuntu	gdm3	16.04	`3.18.2-1ubuntu2`	vulnerable
Ubuntu	gdm3	16.04	`3.18.3-0ubuntu1`	vulnerable
Ubuntu	gdm3	16.04	`3.18.3-0ubuntu2`	vulnerable
Ubuntu	gdm3	16.04	`3.18.3-0ubuntu2.1`	vulnerable
Ubuntu	gdm3	16.04	`3.18.3-0ubuntu2.2`	vulnerable
Ubuntu	gdm3	18.04	`3.26.1-3ubuntu2`	vulnerable
Ubuntu	gdm3	18.04	`3.26.1-3ubuntu3`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-2ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.26.2.1-2ubuntu2`	vulnerable
Ubuntu	gdm3	18.04	`3.27.90-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.27.92-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.28.0-0ubuntu1`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.2`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.3`	vulnerable
Ubuntu	gdm3	18.04	`3.28.2-0ubuntu1.4`	fixed
Suse	gdm	linux enterprise module for desktop applications 15	`3.26.2.1-13.9.1`	fixed
Suse	gdm	linux enterprise desktop 12 sp3	`3.10.0.1-54.6.3`	fixed
Suse	gdm	linux enterprise software development kit 12 sp3	`3.10.0.1-54.6.3`	fixed
Suse	gdm	linux enterprise server 12 sp3	`3.10.0.1-54.6.3`	fixed
Suse	gdm	linux enterprise server for sap applications 12 sp3	`3.10.0.1-54.6.3`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	gdm3	source	sid	`3.28.2-4`	not yet assigned	Not reported	Not reported
Debian	gdm3	source	forky	`3.28.2-4`	not yet assigned	Not reported	Not reported
Debian	gdm3	source	trixie	`3.28.2-4`	not yet assigned	Not reported	Not reported
Debian	gdm3	source	bookworm	`3.28.2-4`	not yet assigned	Not reported	Not reported
Ubuntu	gdm3	deb	18.04	`3.28.2-0ubuntu1.4`	Not reported	USN-3737-1	Not reported
Ubuntu	gdm3	deb	18.04	`3.28.2-0ubuntu1.4`	Not reported	UBUNTU-CVE-2018-14424	Not reported
Suse	gdm	rpm	linux enterprise module for desktop applications 15	`3.26.2.1-13.9.1`	Not reported	SUSE-SU-2018:2771-1	Not reported
Suse	gdm	rpm	linux enterprise desktop 12 sp3	`3.10.0.1-54.6.3`	Not reported	SUSE-SU-2018:2527-1	Not reported
Suse	gdm	rpm	linux enterprise software development kit 12 sp3	`3.10.0.1-54.6.3`	Not reported	SUSE-SU-2018:2527-1	Not reported
Suse	gdm	rpm	linux enterprise server 12 sp3	`3.10.0.1-54.6.3`	Not reported	SUSE-SU-2018:2527-1	Not reported
Suse	gdm	rpm	linux enterprise server for sap applications 12 sp3	`3.10.0.1-54.6.3`	Not reported	SUSE-SU-2018:2527-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gdm3]Fixed
Details (2)
- 43.0-3 · amd64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
- 43.0-3 · arm64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
[gir1.2-gdm-1.0]Fixed
Source package: [gdm3]
Details (2)
- 43.0-3 · amd64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
- 43.0-3 · arm64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
[libgdm1]Fixed
Source package: [gdm3]
Details (2)
- 43.0-3 · amd64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
- 43.0-3 · arm64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
[libgdm-dev]Fixed
Source package: [gdm3]
Details (2)
- 43.0-3 · amd64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12
- 43.0-3 · arm64 · bookworm
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · bookworm; dsa · gdm3 · debian · 12

[Debian 13 (Trixie)]

[gdm3]Fixed
Details (2)
- 48.0-2 · amd64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
- 48.0-2 · arm64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
[gir1.2-gdm-1.0]Fixed
Source package: [gdm3]
Details (2)
- 48.0-2 · amd64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
- 48.0-2 · arm64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
[libgdm1]Fixed
Source package: [gdm3]
Details (2)
- 48.0-2 · amd64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
- 48.0-2 · arm64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
[libgdm-dev]Fixed
Source package: [gdm3]
Details (2)
- 48.0-2 · amd64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13
- 48.0-2 · arm64 · trixie
  Fixed · Fixed: 3.28.2-4
  dsa · gdm3 · debian · 13

Observed: Oct 23, 2026, 5:34:38 PM UTC

References

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