UBUNTU-CVE-2018-16860

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    UBUNTU-CVE-2018-16860

    Published: 14 May 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-16860

    Summary:

    Details: A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.

    References: https://ubuntu.com/security/CVE-2018-16860, https://www.samba.org/samba/security/CVE-2018-16860.html, https://ubuntu.com/security/notices/USN-3976-1, https://ubuntu.com/security/notices/USN-3976-2, https://ubuntu.com/security/notices/USN-5675-1, https://www.cve.org/CVERecord?id=CVE-2018-16860

    Affected packages

    Package

    Name: heimdal

    Purl: pkg:deb/ubuntu/[email protected]~git20131207+dfsg-1ubuntu1.2+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.6~git20131207+dfsg-1ubuntu1.2+esm1

    Affected versions

    1.6~git20120403+dfsg1-3ubuntu0.1
    1.6~git20120403+dfsg1-3ubuntu0.2

    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