Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2014-0979

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
23/01/2014
Last modified:
11/04/2025

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.

Impact

Vector 2.0
AV:L/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0
2.10
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:opensuse:opensuse:12.2:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:*:*:*:*:*:*:*:* 1.7.0 (including)
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.5:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.5.2:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools