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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Lightdm | Robert_ancell | 1.7.5 (including) | 1.7.5 (including) |
| Lightdm | Robert_ancell | 1.7.6 (including) | 1.7.6 (including) |
| Lightdm | Robert_ancell | 1.7.7 (including) | 1.7.7 (including) |
| Lightdm | Robert_ancell | 1.7.8 (including) | 1.7.8 (including) |
| Lightdm | Robert_ancell | 1.7.9 (including) | 1.7.9 (including) |
| Lightdm | Robert_ancell | 1.7.10 (including) | 1.7.10 (including) |
| Lightdm | Robert_ancell | 1.7.11 (including) | 1.7.11 (including) |
| Lightdm | Robert_ancell | 1.7.12 (including) | 1.7.12 (including) |
| Lightdm | Robert_ancell | 1.7.13 (including) | 1.7.13 (including) |
| Lightdm | Robert_ancell | 1.7.14 (including) | 1.7.14 (including) |
| Lightdm | Robert_ancell | 1.7.15 (including) | 1.7.15 (including) |
| Lightdm | Robert_ancell | 1.7.16 (including) | 1.7.16 (including) |
| Lightdm | Robert_ancell | 1.7.17 (including) | 1.7.17 (including) |
| Lightdm | Robert_ancell | 1.7.18 (including) | 1.7.18 (including) |
| Lightdm | Robert_ancell | 1.8.0 (including) | 1.8.0 (including) |
| Lightdm | Robert_ancell | 1.8.1 (including) | 1.8.1 (including) |
| Lightdm | Robert_ancell | 1.8.2 (including) | 1.8.2 (including) |
| Lightdm | Robert_ancell | 1.8.3 (including) | 1.8.3 (including) |
| Lightdm | Robert_ancell | 1.9.0 (including) | 1.9.0 (including) |
| Lightdm | Robert_ancell | 1.9.1 (including) | 1.9.1 (including) |