An issue was discovered in InspIRCd 2 before 2.0.28 and 3 before 3.3.0. The mysql module contains a NULL pointer dereference when built against mariadb-connector-c 3.0.5 or newer. When combined with the sqlauth or sqloper modules, this vulnerability can be used for remote crashing of an InspIRCd server by any user able to connect to a server.
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 |
|---|---|---|---|
| Inspircd | Inspircd | 2.0 (including) | 2.0.28 (excluding) |
| Inspircd | Inspircd | 3.0 (including) | 3.3.0 (excluding) |
| Inspircd | Ubuntu | bionic | * |
| Inspircd | Ubuntu | trusty | * |
| Inspircd | Ubuntu | upstream | * |
| Inspircd | Ubuntu | xenial | * |