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    CVE-2006-0591

    The crypt_gensalt functions for BSDI-style extended DES-based and FreeBSD-sytle MD5-based password hashes in crypt_blowfish 0.4.7 and earlier do not evenly and randomly distribute salts, which makes it easier for attackers to guess passwords from a stolen password file due to the increased number of collisions.

    Published:Feb 7, 2006
    Last Modified:Apr 16, 2026
    EPS:Feb 8, 2006
    EPSS Score:0.00091
    CVSS Score:1.2

    Affected Products

    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Solar Designer
    Product
    Crypt Blowfish

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    ftp://patches.sgi.com/support/free/security/advisories/20060602-01-U.asc
    http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0
    http://secunia.com/advisories/18772
    http://secunia.com/advisories/20232
    http://secunia.com/advisories/20653
    http://secunia.com/advisories/20782
    http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm
    http://www.osvdb.org/23005
    http://www.redhat.com/support/errata/RHSA-2006-0526.html
    http://www.securityfocus.com/archive/1/424260/100/0/threaded
    http://www.vupen.com/english/advisories/2006/0477
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24590
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11502
    ftp://patches.sgi.com/support/free/security/advisories/20060602-01-U.asc
    http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/glibc/crypt_blowfish/crypt_gensalt.c?only_with_tag=CRYPT_BLOWFISH_1_0
    http://secunia.com/advisories/18772
    http://secunia.com/advisories/20232
    http://secunia.com/advisories/20653
    http://secunia.com/advisories/20782
    http://support.avaya.com/elmodocs2/security/ASA-2006-113.htm
    http://www.osvdb.org/23005
    http://www.redhat.com/support/errata/RHSA-2006-0526.html
    http://www.securityfocus.com/archive/1/424260/100/0/threaded
    http://www.vupen.com/english/advisories/2006/0477
    https://exchange.xforce.ibmcloud.com/vulnerabilities/24590
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11502

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High