UBUNTU-CVE-2012-6150

    Dashboard / Vulnerabilities / UBUNTU-CVE-2012-6150

    UBUNTU-CVE-2012-6150

    Published: 3 Dec 2013Last Modified: 22 Apr 2026
    Upstream:
    CVE-2012-6150
    Aliases:
    USN-2054-1

    Summary:

    Details: The winbind_name_list_to_sid_string_list function in nsswitch/pam_winbind.c in Samba through 4.1.2 handles invalid require_membership_of group names by accepting authentication by any user, which allows remote authenticated users to bypass intended access restrictions in opportunistic circumstances by leveraging an administrator's pam_winbind configuration-file mistake.

    References: https://ubuntu.com/security/CVE-2012-6150, https://lists.samba.org/archive/samba-technical/2013-November/096411.html, https://lists.samba.org/archive/samba-technical/2012-June/084593.html, http://openwall.com/lists/oss-security/2013/12/03/5, http://www.samba.org/samba/security/CVE-2012-6150, https://ubuntu.com/security/notices/USN-2054-1, https://www.cve.org/CVERecord?id=CVE-2012-6150

    Affected packages

    Package

    Name: samba

    Purl: pkg:deb/ubuntu/samba@2:4.0.13+dfsg-1ubuntu1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2:4.0.13+dfsg-1ubuntu1

    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-2012-6150 | CVE-DB