CVE-2026-129217
Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-125
Lectura fuera de límites
Fecha de publicación:
13/11/2026
Última modificación:
13/11/2026
Descripción
*** Pendiente de traducción *** In FRRouting (FRR) 8.3 through 10.5.1, bgp_notify_decapsulate_hard_reset() in bgpd/bgp_packet.c does not validate the length of the data field of a received BGP NOTIFICATION Cease/Hard Reset message (RFC 8538). When the data field is exactly one byte long, the function reads one byte past the end of a heap buffer and the 16-bit length of the encapsulated data underflows to 65535, causing a 65535-byte out-of-bounds heap read followed by an assertion failure. A remote BGP peer that has established a session and negotiated the Graceful Restart capability with the Notification (N) bit can send such a message to crash the bgpd daemon, terminating all BGP sessions (denial of service). This is fixed in 10.0.5, 10.1.5, 10.2.6, 10.3.4, 10.4.3, 10.5.2 and 10.6.0.
Impacto
Puntuación base 4.0
6.00
Gravedad 4.0
MEDIA