Unrated severityNVD Advisory· Published Jan 23, 2014· Updated Apr 29, 2026
CVE-2014-0979
CVE-2014-0979
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 products
17cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:*:*:*:*:*:*:*:*+ 13 more
- cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:*:*:*:*:*:*:*:*range: <=1.7.0
- 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:*:*:*:*:*:*:*
- cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:lightdm_gtk\+_greeter_project:lightdm_gtk\+_greeter:1.6.1:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
9- secunia.com/advisories/56211nvdVendor Advisory
- secunia.com/advisories/56423nvdVendor Advisory
- lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.htmlnvd
- lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.htmlnvd
- lists.opensuse.org/opensuse-updates/2014-01/msg00048.htmlnvd
- www.openwall.com/lists/oss-security/2014/01/07/15nvd
- www.securityfocus.com/bid/64679nvd
- bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449nvd
- bugzilla.novell.com/show_bug.cginvd
News mentions
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