CVE-2014-0979

Severity Score

2.1

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función start_authentication en lightdm-gtk-greeter.c de LightDM GTK+ Greeter anterior a la versión 1.7.1 no maneja adecuadamente el valor desde la función lightdm_greeter_get_authentication_user, lo que permite a usuarios locales provocar una denegación de servicio (dereferencia a puntero nulo) a través de un nombre de usuario vacío.

*Credits: N/A

CVSS Scores

NISTv2 2.1

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2014-01-07 CVE Reserved
2014-01-23 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (9)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2014/01/07/15	Mailing List
http://www.securityfocus.com/bid/64679	Vdb Entry
https://bugs.launchpad.net/lightdm-gtk-greeter/+bug/1266449	X_refsource_confirm
https://bugzilla.novell.com/show_bug.cgi?id=857303	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128117.html	2018-10-30
http://lists.fedoraproject.org/pipermail/package-announce/2014-February/128150.html	2018-10-30
http://lists.opensuse.org/opensuse-updates/2014-01/msg00048.html	2018-10-30
http://secunia.com/advisories/56211	2018-10-30
http://secunia.com/advisories/56423	2018-10-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.2 Search vendor "Opensuse" for product "Opensuse" and version "12.2"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				12.3 Search vendor "Opensuse" for product "Opensuse" and version "12.3"		-		Affected
Opensuse Search vendor "Opensuse"		Opensuse Search vendor "Opensuse" for product "Opensuse"				13.1 Search vendor "Opensuse" for product "Opensuse" and version "13.1"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				<= 1.7.0 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version " <= 1.7.0"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.1 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.1"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.2 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.2"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.3 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.3"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.4 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.4"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.5 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.5"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.1.6 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.1.6"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.3.0 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.3.0"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.3.1 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.3.1"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.5.0 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.5.0"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.5.1 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.5.1"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.5.2 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.5.2"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.6.0 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.6.0"		-		Affected
Lightdm Gtk\+ Greeter Project Search vendor "Lightdm Gtk\+ Greeter Project"		Lightdm Gtk\+ Greeter Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter"				1.6.1 Search vendor "Lightdm Gtk\+ Greeter Project" for product "Lightdm Gtk\+ Greeter" and version "1.6.1"		-		Affected