{"id":"UBUNTU-CVE-2012-6150","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.","modified":"2026-04-22T09:18:59.865838Z","published":"2013-12-03T00:00:00Z","related":["USN-2054-1"],"upstream":["CVE-2012-6150"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2012-6150"},{"type":"REPORT","url":"https://lists.samba.org/archive/samba-technical/2013-November/096411.html"},{"type":"REPORT","url":"https://lists.samba.org/archive/samba-technical/2012-June/084593.html"},{"type":"REPORT","url":"http://openwall.com/lists/oss-security/2013/12/03/5"},{"type":"REPORT","url":"http://www.samba.org/samba/security/CVE-2012-6150"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2054-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2012-6150"}],"affected":[{"package":{"name":"samba","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/samba@2:4.0.13+dfsg-1ubuntu1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:4.0.13+dfsg-1ubuntu1"}]}],"versions":["2:3.6.18-1ubuntu3","2:4.0.10+dfsg-4ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libnss-winbind","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libpam-smbpass","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libpam-winbind","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libparse-pidl-perl","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libsmbclient","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libsmbsharemodes0","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"libwbclient0","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"python-samba","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"registry-tools","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba-common","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba-common-bin","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba-dsdb-modules","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba-libs","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"samba-testsuite","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"smbclient","binary_version":"2:4.0.13+dfsg-1ubuntu1"},{"binary_name":"winbind","binary_version":"2:4.0.13+dfsg-1ubuntu1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2012/UBUNTU-CVE-2012-6150.json"}}],"schema_version":"1.7.5","severity":[{"type":"Ubuntu","score":"medium"}]}