OBDA systems’ Mastro 1.0 is vulnerable to XML Entity Expansion (aka “billion laughs”) attack allowing denial of service.
The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mastro | Obdasystems | 1.0 (including) | 1.0 (including) |