CVEvulnerability

CVE-2014-0979

2.1 LOW Published 2014-01-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2014-01-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:N/I:N/A:P

Description

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.

Affected configurations

• opensuse opensuse 12.2 • opensuse opensuse 12.3 • opensuse opensuse 13.1 • lightdm gtk\+ greeter project lightdm gtk\+ greeter (<= 1.7.0) • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.1 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.2 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.3 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.4 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.5 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.1.6 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.3.0 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.3.1 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.5.0 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.5.1 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.5.2 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.6.0 • lightdm gtk\+ greeter project lightdm gtk\+ greeter 1.6.1

References