CVE-2012-6150
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Ubuntu Affected 5 releases
| Version | Status | Fixed in |
|---|---|---|
| 13.10 | Affected | — |
| 13.04 | Affected | — |
| 12.10 | Affected | — |
| 12.04 | Affected | — |
| 10.04 | Affected | — |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 2:4.0.13+dfsg-1 |
| sid | Fixed | 2:4.0.13+dfsg-1 |
| forky | Fixed | 2:4.0.13+dfsg-1 |
| bullseye | Fixed | 2:4.0.13+dfsg-1 |
| bookworm | Fixed | 2:4.0.13+dfsg-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| samba | samba | {"startIncluding":"3.3.10","endExcluding":"3.4.0"} | 3.4.0 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136864.html
- http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134717.html
- http://lists.opensuse.org/opensuse-security-announce/2014-01/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00088.html
- http://lists.opensuse.org/opensuse-updates/2014-03/msg00063.html
- http://marc.info/?l=bugtraq&m=141660010015249&w=2
- http://openwall.com/lists/oss-security/2013/12/03/5
- http://rhn.redhat.com/errata/RHSA-2014-0330.html
- http://security.gentoo.org/glsa/glsa-201502-15.xml
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:299
- http://www.ubuntu.com/usn/USN-2054-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1036897
- https://bugzilla.samba.org/show_bug.cgi?id=10300
- https://lists.samba.org/archive/samba-technical/2012-June/084593.html
- https://lists.samba.org/archive/samba-technical/2013-November/096411.html
- https://security-tracker.debian.org/tracker/CVE-2012-6150
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.