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erickcestari.dev > blog > ping-flood-oom

crashing a lightning node with a flood of pings - Erick Cestari

1+ week, 6+ day ago   (716+ words) I found a critical DoS vulnerability in Core Lightning (CLN) while writing my own BOLT8 implementation. If I flood the node with ping messages asking for the largest possible pong and then never read the TCP buffer, the node keeps queueing…...