plugins/acl/acl-backend-vfile.c in Dovecot 1.2.x before 1.2.15 and 2.0.x before 2.0.5 interprets an ACL entry as a directive to add to the permissions granted by another ACL entry, instead of a directive to replace the permissions granted by another ACL entry, in certain circumstances involving the private namespace of a user, which allows remote authenticated users to bypass intended access restrictions via a request to read or modify a mailbox.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dovecot | Dovecot | 1.2.0 (including) | 1.2.0 (including) |
| Dovecot | Dovecot | 1.2.1 (including) | 1.2.1 (including) |
| Dovecot | Dovecot | 1.2.2 (including) | 1.2.2 (including) |
| Dovecot | Dovecot | 1.2.3 (including) | 1.2.3 (including) |
| Dovecot | Dovecot | 1.2.4 (including) | 1.2.4 (including) |
| Dovecot | Dovecot | 1.2.5 (including) | 1.2.5 (including) |
| Dovecot | Dovecot | 1.2.6 (including) | 1.2.6 (including) |
| Dovecot | Dovecot | 1.2.7 (including) | 1.2.7 (including) |
| Dovecot | Dovecot | 1.2.8 (including) | 1.2.8 (including) |
| Dovecot | Dovecot | 1.2.9 (including) | 1.2.9 (including) |
| Dovecot | Dovecot | 1.2.10 (including) | 1.2.10 (including) |
| Dovecot | Dovecot | 1.2.11 (including) | 1.2.11 (including) |
| Dovecot | Dovecot | 1.2.12 (including) | 1.2.12 (including) |
| Dovecot | Dovecot | 1.2.13 (including) | 1.2.13 (including) |
| Dovecot | Dovecot | 1.2.14 (including) | 1.2.14 (including) |
| Dovecot | Ubuntu | jaunty | * |
| Dovecot | Ubuntu | lucid | * |
| Dovecot | Ubuntu | maverick | * |
| Dovecot | Ubuntu | upstream | * |