A null pointer dereference flaw was found in sambas Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | 3.6.0 (including) | 4.11.15 (excluding) |
| Samba | Samba | 4.12.0 (including) | 4.12.9 (excluding) |
| Samba | Samba | 4.13.0 (including) | 4.13.1 (excluding) |