UBUNTU-CVE-2017-12151

    Dashboard / Vulnerabilities / UBUNTU-CVE-2017-12151

    UBUNTU-CVE-2017-12151

    Published: 20 Sept 2017Last Modified: 22 Apr 2026
    Upstream:
    CVE-2017-12151
    Aliases:
    USN-3426-1

    Summary:

    Details: A flaw was found in the way samba client before samba 4.4.16, samba 4.5.14 and samba 4.6.8 used encryption with the max protocol set as SMB3. The connection could lose the requirement for signing and encrypting to any DFS redirects, allowing an attacker to read or alter the contents of the connection via a man-in-the-middle attack.

    References: https://ubuntu.com/security/CVE-2017-12151, https://www.samba.org/samba/security/CVE-2017-12151.html, https://ubuntu.com/security/notices/USN-3426-1, https://www.cve.org/CVERecord?id=CVE-2017-12151

    Affected packages

    Package

    Name: samba

    Purl: pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.12?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:4.3.11+dfsg-0ubuntu0.14.04.12

    Affected versions

    2:3.6.18-1ubuntu3

    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
    UBUNTU-CVE-2017-12151 | CVE-DB