Multiple stack-based buffer overflows were discovered in libupnp4, a library used for handling the Universal Plug and Play protocol. HD Moore from Rapid7 discovered that SSDP queries where not correctly handled by the unique_service_name function. An attacker sending carefully crafted SSDP queries to a daemon built on libupnp4 could generate a buffer overflow, overwriting the stack, leading to the daemon crash and possible remote code execution.