CVE-2014-0979

N/A Unknown
Published: January 23, 2014 Modified: April 29, 2026
View on NVD

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.

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References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html
Source: cve@mitre.org
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html
Source: cve@mitre.org
http://secunia.com/advisories/56211
Source: cve@mitre.org
Vendor Advisory
http://secunia.com/advisories/56423
Source: cve@mitre.org
Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/01/07/15
Source: cve@mitre.org
http://www.securityfocus.com/bid/64679
Source: cve@mitre.org
https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
Source: cve@mitre.org
https://bugzilla.novell.com/show_bug.cgi?id=857303
Source: cve@mitre.org
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://secunia.com/advisories/56211
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://secunia.com/advisories/56423
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.openwall.com/lists/oss-security/2014/01/07/15
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/64679
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449
Source: af854a3a-2127-422b-91ae-364da2661108
https://bugzilla.novell.com/show_bug.cgi?id=857303
Source: af854a3a-2127-422b-91ae-364da2661108

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
N/A / 10.0
EPSS (Exploit Probability)
0.1%
21th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

opensuse lightdm_gtk\+_greeter_project