CVE catalog

CVE-2013-4459

lightdm: CVE-2013-4459

Severity: Low
Source: [NVD] · [CVE record]
EPSS: 0.44% · Oct 25, 2026

LightDM 1.7.5 through 1.8.3 and 1.9.x before 1.9.2 does not apply the AppArmor profile to the Guest account, which allows local users to bypass intended restrictions by leveraging the Guest account.

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`	not affected
Debian	lightdm	forky	`1.33.1-4`	not affected
Debian	lightdm	trixie	`1.32.0-6`	not affected
Debian	lightdm	bookworm	`1.26.0-8`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	lightdm	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	lightdm	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	lightdm	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	lightdm	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[gir1.2-lightdm-1]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[liblightdm-gobject-1-0]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[liblightdm-gobject-dev]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[liblightdm-qt5-3-0]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[liblightdm-qt5-3-dev]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[lightdm]Not affected
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
[lightdm-vala]Not affected
Source package: [lightdm]
Details (2)
- 1.26.0-8 · amd64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm
- 1.26.0-8 · arm64 · bookworm
  Not affected
  dsa · lightdm · debian · bookworm

Observed: Oct 23, 2026, 5:08:43 PM UTC

References

[https://security-tracker.debian.org/tracker/CVE-2013-4459]

[Debian Security Tracker] · [FIRST EPSS]