| Package | Affected versions | Patched versions |
|---|---|---|
| samba | ≥ 3.3.10, < 3.4.0≥ 3.4.3, < 3.6.22≥ 4.0.0, < 4.0.13≥ 4.1.0, < 4.1.3 | 3.4.03.6.224.0.134.1.3 |
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.
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