CVE-2013-4143 Detail

Current 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.


View Analysis Description

Evaluator Description

per http://cwe.mitre.org/data/definitions/476.html "CWE-476: NULL Pointer Dereference"

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


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References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://openwall.com/lists/oss-security/2013/07/16/8
http://openwall.com/lists/oss-security/2013/07/18/6
http://www.tux.org/~bagleyd/xlock/xlockmore.README Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other cwe source acceptance level NIST  

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-4143
NVD Published Date:
05/30/2014
NVD Last Modified:
06/26/2014
Source:
Red Hat, Inc.