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.
Advisories
Source ID Title
EUVD EUVD EUVD-2014-1009 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.
Fixes

Solution

No solution given by the vendor.


Workaround

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-06T09:34:40.438Z

Reserved: 2014-01-07T00:00:00

Link: CVE-2014-0979

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2014-01-23T01:55:04.460

Modified: 2025-04-11T00:51:21.963

Link: CVE-2014-0979

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses