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    CVE-2015-3405

    ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and not #, which might allow remote attackers to obtain the value of generated MD5 keys via a brute force attack with the 93 possible keys.

    Published:Apr 9, 2015
    Last Modified:Apr 20, 2025
    EPS:Aug 9, 2017
    EPSS Score:0.06205
    CVSS Score:7.5

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Ntp
    Product
    Ntp
    Vendor
    Opensuse
    Product
    Suse Linux Enterprise Server
    Vendor
    Opensuse Project
    Product
    Suse Linux Enterprise Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux For Ibm Z Systems
    Vendor
    Redhat
    Product
    Enterprise Linux For Power Big Endian
    Vendor
    Redhat
    Product
    Enterprise Linux For Scientific Computing
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Server From Rhui 6
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Suse
    Product
    Suse Linux Enterprise Server

    Exploits

    No exploit reference

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    References

    http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg
    http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html
    http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html
    http://rhn.redhat.com/errata/RHSA-2015-1459.html
    http://rhn.redhat.com/errata/RHSA-2015-2231.html
    http://www.debian.org/security/2015/dsa-3223
    http://www.debian.org/security/2015/dsa-3388
    http://www.openwall.com/lists/oss-security/2015/04/23/14
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    http://www.securityfocus.com/bid/74045
    https://bugs.ntp.org/show_bug.cgi?id=2797
    https://bugzilla.redhat.com/show_bug.cgi?id=1210324
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us
    http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg
    http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html
    http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html
    http://rhn.redhat.com/errata/RHSA-2015-1459.html
    http://rhn.redhat.com/errata/RHSA-2015-2231.html
    http://www.debian.org/security/2015/dsa-3223
    http://www.debian.org/security/2015/dsa-3388
    http://www.openwall.com/lists/oss-security/2015/04/23/14
    http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
    http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    http://www.securityfocus.com/bid/74045
    https://bugs.ntp.org/show_bug.cgi?id=2797
    https://bugzilla.redhat.com/show_bug.cgi?id=1210324
    https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us

    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