GHSA-G6V3-7XMC-W563 GoPacket's sFlow ExtendedGatewayFlow decoder: unbounded attacker-controlled allocation (104-byte UDP datagram -> up to 16 GiB make) -> unauthenticated remote DoS

Summary The sFlow ExtendedGatewayFlow record decoder in github.com/gopacket/gopacket allocates a slice with makeuint32, n where n is an attacker-controlled 32-bit wire field that has no upper bound. Because the allocation happens before the read loop that would consume the corresponding bytes, a...