A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each others tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
A product requires authentication, but the product has an alternate path or channel that does not require authentication.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | * | 4.14.14 (excluding) |
| Samba | Samba | 4.15.0 (including) | 4.15.9 (excluding) |
| Samba | Samba | 4.16.0 (including) | 4.16.4 (excluding) |
| Samba | Ubuntu | bionic | * |
| Samba | Ubuntu | devel | * |
| Samba | Ubuntu | esm-infra-legacy/trusty | * |
| Samba | Ubuntu | esm-infra/bionic | * |
| Samba | Ubuntu | esm-infra/xenial | * |
| Samba | Ubuntu | focal | * |
| Samba | Ubuntu | impish | * |
| Samba | Ubuntu | jammy | * |
| Samba | Ubuntu | kinetic | * |
| Samba | Ubuntu | lunar | * |
| Samba | Ubuntu | mantic | * |
| Samba | Ubuntu | noble | * |
| Samba | Ubuntu | oracular | * |
| Samba | Ubuntu | trusty/esm | * |