CVE catalog

CVE-2015-8316

lightdm: CVE-2015-8316

Severity: Medium
Published: Sep 6, 2017, 9:29:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 1.75% · Oct 25, 2026

Array index error in LightDM (aka Light Display Manager) 1.14.3, 1.16.x before 1.16.6 when the XDMCP server is enabled allows remote attackers to cause a denial of service (process crash) via an XDMCP request packet with no address.

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	lightdm	sid	`1.33.1-4`	fixed
Debian	lightdm	forky	`1.33.1-4`	fixed
Debian	lightdm	trixie	`1.32.0-6`	fixed
Debian	lightdm	bookworm	`1.26.0-8`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	lightdm	source	sid	`1.16.6-1`	not yet assigned	Not reported	Not reported
Debian	lightdm	source	forky	`1.16.6-1`	not yet assigned	Not reported	Not reported
Debian	lightdm	source	trixie	`1.16.6-1`	not yet assigned	Not reported	Not reported
Debian	lightdm	source	bookworm	`1.16.6-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-lightdm-1]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[liblightdm-gobject-1-0]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[liblightdm-gobject-dev]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[liblightdm-qt5-3-0]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[liblightdm-qt5-3-dev]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[lightdm]Fixed
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
[lightdm-vala]Fixed
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12
- 1.26.0-8 · arm64 · bookworm
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · bookworm; dsa · lightdm · debian · 12

[Debian 13 (Trixie)]

[gir1.2-lightdm-1]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[liblightdm-gobject-1-0]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[liblightdm-gobject-dev]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[liblightdm-qt5-3-0]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[liblightdm-qt5-3-dev]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[lightdm]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
[lightdm-vala]Fixed
Source package: [lightdm]
Details (2)
- 1.32.0-6+b2 · amd64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13
- 1.32.0-6+b2 · arm64 · trixie
  Fixed · Fixed: 1.16.6-1
  dsa · lightdm · debian · 13

Observed: Oct 23, 2026, 5:16:51 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]