SIPSorcery vulnerable to Denial of Service via out-of-bounds read in SCTP SACK chunk parsing

Summary SctpSackChunk.ParseChunk reads the numGapAckBlocks and numDuplicateTSNs fields each up to 65535 directly from an attacker-controlled SCTP SACK chunk and loops that many times reading 4 bytes per iteration, with no validation of the counts against the chunk length or the receive buffer. A...