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    CVE-2016-2114

    The SMB1 protocol implementation in Samba 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 does not recognize the "server signing = mandatory" setting, which allows man-in-the-middle attackers to spoof SMB servers by modifying the client-server data stream.

    Published:Apr 12, 2016
    Last Modified:Apr 12, 2025
    EPS:Apr 25, 2016
    EPSS Score:0.08894
    CVSS Score:5.9

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Mission Critical
    Vendor
    Redhat
    Product
    Storage
    Vendor
    Samba
    Product
    Samba

    Exploits

    No exploit reference

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    References

    http://badlock.org/
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
    http://rhn.redhat.com/errata/RHSA-2016-0612.html
    http://rhn.redhat.com/errata/RHSA-2016-0614.html
    http://rhn.redhat.com/errata/RHSA-2016-0618.html
    http://rhn.redhat.com/errata/RHSA-2016-0620.html
    http://www.debian.org/security/2016/dsa-3548
    http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
    http://www.securityfocus.com/bid/86011
    http://www.securitytracker.com/id/1035533
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012
    http://www.ubuntu.com/usn/USN-2950-1
    http://www.ubuntu.com/usn/USN-2950-2
    http://www.ubuntu.com/usn/USN-2950-3
    http://www.ubuntu.com/usn/USN-2950-4
    http://www.ubuntu.com/usn/USN-2950-5
    https://bto.bluecoat.com/security-advisory/sa122
    https://security.gentoo.org/glsa/201612-47
    https://www.samba.org/samba/history/samba-4.2.10.html
    https://www.samba.org/samba/latest_news.html#4.4.2
    https://www.samba.org/samba/security/CVE-2016-2114.html
    http://badlock.org/
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
    http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
    http://rhn.redhat.com/errata/RHSA-2016-0612.html
    http://rhn.redhat.com/errata/RHSA-2016-0614.html
    http://rhn.redhat.com/errata/RHSA-2016-0618.html
    http://rhn.redhat.com/errata/RHSA-2016-0620.html
    http://www.debian.org/security/2016/dsa-3548
    http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
    http://www.securityfocus.com/bid/86011
    http://www.securitytracker.com/id/1035533
    http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012
    http://www.ubuntu.com/usn/USN-2950-1
    http://www.ubuntu.com/usn/USN-2950-2
    http://www.ubuntu.com/usn/USN-2950-3
    http://www.ubuntu.com/usn/USN-2950-4
    http://www.ubuntu.com/usn/USN-2950-5
    https://bto.bluecoat.com/security-advisory/sa122
    https://security.gentoo.org/glsa/201612-47
    https://www.samba.org/samba/history/samba-4.2.10.html
    https://www.samba.org/samba/latest_news.html#4.4.2
    https://www.samba.org/samba/security/CVE-2016-2114.html

    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