Gnome GDM 2.0 Beta4 Error Message VerboseAuth Username information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Gnome GDM 2.0 Beta4. It has been declared as problematic. Impacted is the function VerboseAuth of the component Error Message Handler. The manipulation results in information disclosure (Username). This vulnerability is reported as CVE-1999-0990. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Gnome GDM 2.0 Beta4. Affected is the function VerboseAuth of the component Error Message Handler. The manipulation with an unknown input leads to a information disclosure vulnerability (Username). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. CVE summarizes:

Error messages generated by gdm with the VerboseAuth setting allows an attacker to identify valid users on a system.

The weakness was disclosed 12/05/1999. This vulnerability is traded as CVE-1999-0990. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Username
Class: Information disclosure / Username
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/05/1999 🔍
12/05/1999 +0 days 🔍
06/22/2014 +5313 days 🔍
04/19/2026 +4319 days 🔍

Sourcesinfo

Vendor: gnome.org

Status: Confirmed

CVE: CVE-1999-0990 (🔍)
GCVE (CVE): GCVE-0-1999-0990
GCVE (VulDB): GCVE-100-15042

Entryinfo

Created: 06/22/2014 15:45
Updated: 04/19/2026 22:45
Changes: 06/22/2014 15:45 (38), 05/22/2018 09:18 (9), 04/19/2026 22:45 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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