Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2007-1859

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
02/05/2007
Last modified:
09/04/2025

Description

XScreenSaver 4.10, when using a remote directory service for credentials, does not properly handle the results from the getpwuid function in drivers/lock.c when there is no network connectivity, which causes XScreenSaver to crash and unlock the screen and allows local users to bypass authentication.

Impact

Vector 2.0
AV:L/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 4.60 MEDIUM
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
4.60
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:redhat:enterprise_linux:2.1:*:advanced_server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:2.1:*:enterprise_server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:2.1:*:workstation:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:3.0:*:advanced_servers:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:3.0:*:enterprise_server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:3.0:*:workstation:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:4.0:*:advanced_server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:4.0:*:enterprise_server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:4.0:*:workstation:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:linux_advanced_workstation:2.1:*:itanium:*:*:*:*:*
cpe:2.3:a:xscreensaver:xscreensaver:4.10:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools