CVE-2014-0979

CVE-2014-0979 is a low-severity vulnerability in Lightdm Gtk+ Greeter Project Lightdm Gtk+ Greeter with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

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.

Frequently asked questions

What is CVE-2014-0979?
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.
How severe is CVE-2014-0979?
CVE-2014-0979 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2014-0979 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-0979?
CVE-2014-0979 primarily affects Lightdm Gtk+ Greeter Project Lightdm Gtk+ Greeter. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-0979?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-0979 published?
CVE-2014-0979 was published on 2014-01-23 and last updated on 2026-06-17.

References

Affected products (17)