Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.


Security Impact Summary

CVE-2014-0979 is a security vulnerability that . Impacting 2 products from opensuse, from lightdm_gtk\+_greeter_project organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2014, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.


Published

2014-01-23T01:55:04.460

Last Modified

2026-04-29T01:13:23.040

Status

Modified

Source

[email protected]

Severity

CVSSv2: 2.1 (LOW)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

3.9

Impact Score

2.9

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System opensuse opensuse 12.2 Yes
Operating System opensuse opensuse 12.3 Yes
Operating System opensuse opensuse 13.1 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter ≤ 1.7.0 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.1 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.2 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.3 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.4 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.5 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.1.6 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.3.0 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.3.1 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.5.0 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.5.1 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.5.2 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.6.0 Yes
Application lightdm_gtk\+_greeter_project lightdm_gtk\+_greeter 1.6.1 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For opensuse's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.