CVE-2018-16853

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    CVE-2018-16853

    Published: 28 Nov 2018Last Modified: 8 Jul 2026

    Summary:

    Details: Samba from version 4.7.0 has a vulnerability that allows a user in a Samba AD domain to crash the KDC when Samba is built in the non-default MIT Kerberos configuration. With this advisory the Samba Team clarify that the MIT Kerberos build of the Samba AD DC is considered experimental. Therefore the Samba Team will not issue security patches for this configuration. Additionally, Samba 4.7.12, 4.8.7 and 4.9.3 have been issued as security releases to prevent building of the AD DC with MIT Kerberos unless --with-experimental-mit-ad-dc is specified to the configure command.

    References: http://www.securityfocus.com/bid/106026, https://security.gentoo.org/glsa/202003-52, https://security.netapp.com/advisory/ntap-20181127-0001/, https://www.samba.org/samba/security/CVE-2018-16853.html, https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16853

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- d1e69845e28c20a491c4cd60c712b46ddfcb9dc0
    Fixed -b7d190f89d7674cf58a02486fa9887d393918611

    Affected versions

    samba-4.7.11
    samba-4.7.10
    samba-4.7.8
    samba-4.7.7
    samba-4.7.5
    samba-4.7.4
    samba-4.7.2
    samba-4.7.1
    samba-4.7.0

    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
    CVE-2018-16853 | CVE-DB