3 results · Feed
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High 7.5
SIPSorcery: Malformed UDP packet on the RTP/ICE socket can remotely terminate a media session (DoS)
SIPSorcery is a WebRTC, SIP, and VoIP library for C# and .NET. Prior to 10.0.9, RTPChannel.OnRTPPacketReceived and the STUNAttribute.ParseMessageAttributes, STUNXORAddressAttribute, and STUNAddressAttribute parsing path index untrusted bytes without sufficien…
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High 7.5
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 b…
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High 7.5
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 a…