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

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CVE-2013-4143

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/05/2014
Last modified:
12/04/2025

Description

The (1) checkPasswd and (2) checkGroupXlockPasswds functions in xlockmore before 5.43 do not properly handle when a NULL value is returned upon an error by the crypt or dispcrypt function as implemented in glibc 2.17 and later, which allows attackers to bypass the screen lock via vectors related to invalid salts.

Impact

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

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

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

Base Score 2.0
2.10
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:david_bagley:xlockmore:*:*:*:*:*:*:*:* 5.42 (including)
cpe:2.3:a:david_bagley:xlockmore:5.24:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.25:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.26:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.27:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.28:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.29:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.30:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.31:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.32:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.33:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.34:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.35:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.36:*:*:*:*:*:*:*
cpe:2.3:a:david_bagley:xlockmore:5.37:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools