AIKIDO-2026-400608
SIPSorcery is vulnerable to Denial of Service (DoS)
53
Medium Risk
This Affects:
SIPSorceryTL;DR
IceTcpReceiver overrides the base receiver methods but retains a catch-all handler that calls Close() on any exception, re-introducing an anti-pattern previously removed from the base UdpReceiver. A single malformed packet on the ICE-over-TCP path causes a null dereference that unwinds into this handler and disconnects the socket with no re-arm. The ICE-over-TCP receive path for that session is then permanently terminated. The fix changes the overrides to log-and-drop and re-arm and null-guards the reassigned packet.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you use ICE-over-TCP connectivity to a STUN/TURN server whose relayed data can include a malformed or zero-length payload.
Background info
SIPSorcery is vulnerable to Denial of Service (DoS) in versions 0.0.1 - 10.0.13.
How to fix this
Upgrade the SIPSorcery library to the patch version.
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