CVE-2014-0979

2014-01-2301:55:04

Debian Security Bug Tracker

security-tracker.debian.org

2.1 Low

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:L/AC:L/Au:N/C:N/I:N/A:P

0.0004 Low

EPSS

Percentile

5.1%

JSON

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.

OSVersionArchitecturePackageVersionFilename
Debian12alllightdm-gtk-greeter< 1.6.1-5lightdm-gtk-greeter_1.6.1-5_all.deb
Debian11alllightdm-gtk-greeter< 1.6.1-5lightdm-gtk-greeter_1.6.1-5_all.deb
Debian10alllightdm-gtk-greeter< 1.6.1-5lightdm-gtk-greeter_1.6.1-5_all.deb
Debian999alllightdm-gtk-greeter< 1.6.1-5lightdm-gtk-greeter_1.6.1-5_all.deb
Debian13alllightdm-gtk-greeter< 1.6.1-5lightdm-gtk-greeter_1.6.1-5_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	lightdm-gtk-greeter	< 1.6.1-5	lightdm-gtk-greeter_1.6.1-5_all.deb
Debian	11	all	lightdm-gtk-greeter	< 1.6.1-5	lightdm-gtk-greeter_1.6.1-5_all.deb
Debian	10	all	lightdm-gtk-greeter	< 1.6.1-5	lightdm-gtk-greeter_1.6.1-5_all.deb
Debian	999	all	lightdm-gtk-greeter	< 1.6.1-5	lightdm-gtk-greeter_1.6.1-5_all.deb
Debian	13	all	lightdm-gtk-greeter	< 1.6.1-5	lightdm-gtk-greeter_1.6.1-5_all.deb