CVE-2023-41909

Se descubrió un problema en FRRouting FRR hasta 9.0. bgp_nlri_parse_flowspec en bgpd/bgp_flowspec.c. Procesa solicitudes con formato incorrecto sin atributos, conllevando una desreferencia de puntero NULL.

A flaw was found in frr. Processing a malformed request with no attributes may cause a NULL pointer dereference, resulting in a denial of service.

It was discovered that the FRR did not properly check the attribute length in NRLI. A remote attacker could possibly use this issue to cause a denial of service. It was discovered that the FRR did not properly manage memory when reading initial bytes of ORF header. A remote attacker could possibly use this issue to cause a denial of service. It was discovered that FRR did not properly validate the attributes in the BGP FlowSpec functionality. A remote attacker could possibly use this issue to cause a denial of service.