CVE catalog
CVE-2014-0979
lightdm-gtk-greeter: CVE-2014-0979
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 25, 2026
The start_authentication function in lightdm-gtk-greeter.c in LightDM GTK+ Greeter before 1.7.1 does not properly handle the return value from the lightdm_greeter_get_authentication_user function, which allows local users to cause a denial of service (NULL pointer dereference) via an empty username.
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-gtk-greeter | sid | 2.0.9-2 | fixed |
| Debian | lightdm-gtk-greeter | forky | 2.0.9-1 | fixed |
| Debian | lightdm-gtk-greeter | trixie | 2.0.9-1 | fixed |
| Debian | lightdm-gtk-greeter | bookworm | 2.0.8-2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lightdm-gtk-greeter | source | sid | 1.6.1-5 | not yet assigned | Not reported | [734472] |
| Debian | lightdm-gtk-greeter | source | forky | 1.6.1-5 | not yet assigned | Not reported | [734472] |
| Debian | lightdm-gtk-greeter | source | trixie | 1.6.1-5 | not yet assigned | Not reported | [734472] |
| Debian | lightdm-gtk-greeter | source | bookworm | 1.6.1-5 | not yet assigned | Not reported | [734472] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [lightdm-gtk-greeter]Fixed
Source package: [lightdm-gtk-greeter]
Details (2)
2.0.8-2+b1· amd64 · bookwormFixed · Fixed:
1.6.1-5dsa · lightdm-gtk-greeter · debian · bookworm; dsa · lightdm-gtk-greeter · debian · 12
2.0.8-2+b1· arm64 · bookwormFixed · Fixed:
1.6.1-5dsa · lightdm-gtk-greeter · debian · bookworm; dsa · lightdm-gtk-greeter · debian · 12
[Debian 13 (Trixie)]
- [lightdm-gtk-greeter]Fixed
Source package: [lightdm-gtk-greeter]
Details (2)
2.0.9-1· amd64 · trixieFixed · Fixed:
1.6.1-5dsa · lightdm-gtk-greeter · debian · 13
2.0.9-1+b2· arm64 · trixieFixed · Fixed:
1.6.1-5dsa · lightdm-gtk-greeter · debian · 13
Observed: