Intel

AIKIDO-2026-400608

SIPSorcery is vulnerable to Denial of Service (DoS)

Denial of Service (DoS)GHSA-mwf8-6m4x-pgmm Published Aug 11, 2026

53

Medium Risk

This Affects:

DOTNETSIPSorcery
0.0.1 - 10.0.13
Fixed in 10.0.14
Are you affected? Scan for Free

TL;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.