An Incorrect Access Control vulnerability in SpawningKit in Phusion Passenger 5.3.x before 5.3.2 allows a Passenger-managed malicious application, upon spawning a child process, to report an arbitrary different PID back to Passengers process manager. If the malicious application then generates an error, it would cause Passengers process manager to kill said reported arbitrary PID.
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Passenger | Phusion | 5.3.0 (including) | 5.3.2 (excluding) |
| Passenger | Ubuntu | artful | * |
| Passenger | Ubuntu | cosmic | * |
| Passenger | Ubuntu | disco | * |
| Passenger | Ubuntu | eoan | * |
| Passenger | Ubuntu | groovy | * |
| Passenger | Ubuntu | hirsute | * |
| Passenger | Ubuntu | upstream | * |
| Ruby-passenger | Ubuntu | trusty | * |