SIPSorcery: Malformed UDP datagram crashes TurnServer receive loop with no restart, disabling TURN UDP relay for all clients (DoS)

Summary TurnServer.ReceiveUdpAsync places its generic catch Exception OUTSIDE the while receive loop, and Start launches the loop fire-and-forget with no supervision or restart. A single pre-authentication UDP datagram whose STUN header first byte is in 0x80–0xFF causes STUNHeader.ParseSTUNHeader...

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...

GHSA-28GM-JRMW-XX93 SIPSorcery: Malformed UDP packet on the RTP/ICE socket can remotely terminate a media session (DoS)

Impact A single malformed inbound UDP packet on the RTP/ICE socket can remotely terminate an active RTP or WebRTC media session. The packet receive handler indexes packet and STUN attribute bytes without sufficient length checks and throws, and the UDP receive loop converted any such exception in...

SIPSorcery: Malformed UDP packet on the RTP/ICE socket can remotely terminate a media session (DoS)

Impact A single malformed inbound UDP packet on the RTP/ICE socket can remotely terminate an active RTP or WebRTC media session. The packet receive handler indexes packet and STUN attribute bytes without sufficient length checks and throws, and the UDP receive loop converted any such exception in...