The owner_set function in smbcacls.c in smbcacls in Samba 4.0.x before 4.0.16 and 4.1.x before 4.1.6 removes an ACL during use of a –chown or –chgrp option, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances by leveraging an unintended administrative change.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | 4.1.0 (including) | 4.1.0 (including) |
| Samba | Samba | 4.1.1 (including) | 4.1.1 (including) |
| Samba | Samba | 4.1.2 (including) | 4.1.2 (including) |
| Samba | Samba | 4.1.3 (including) | 4.1.3 (including) |
| Samba | Samba | 4.1.4 (including) | 4.1.4 (including) |
| Samba | Samba | 4.1.5 (including) | 4.1.5 (including) |
| Red Hat Enterprise Linux 6 | RedHat | samba4-0:4.0.0-61.el6_5.rc4 | * |
| Samba | Ubuntu | devel | * |
| Samba | Ubuntu | trusty | * |
| Samba | Ubuntu | upstream | * |
| Samba | Ubuntu | utopic | * |
| Samba | Ubuntu | vivid | * |
| Samba | Ubuntu | wily | * |
| Samba | Ubuntu | xenial | * |
| Samba | Ubuntu | yakkety | * |
| Samba | Ubuntu | zesty | * |
| Samba4 | Ubuntu | lucid | * |
| Samba4 | Ubuntu | precise | * |
| Samba4 | Ubuntu | quantal | * |
| Samba4 | Ubuntu | saucy | * |
| Samba4 | Ubuntu | upstream | * |