CVE-2026-40613
Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-704
Conversión de tipos errónea
Fecha de publicación:
21/04/2026
Última modificación:
22/04/2026
Descripción
*** Pendiente de traducción *** Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.10.0, the STUN/TURN attribute parsing functions in coturn perform unsafe pointer casts from uint8_t * to uint16_t * without alignment checks. When processing a crafted STUN message with odd-aligned attribute boundaries, this results in misaligned memory reads at ns_turn_msg.c. On ARM64 architectures (AArch64) with strict alignment enforcement, this causes a SIGBUS signal that immediately kills the turnserver process. An unauthenticated remote attacker can crash any ARM64 coturn deployment by sending a single crafted UDP packet. This vulnerability is fixed in 4.10.0.
Impacto
Puntuación base 3.x
7.50
Gravedad 3.x
ALTA