GHSA-74xm-qj29-cq8p

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GHSA-74xm-qj29-cq8p

Summary: In github.com/pion/webrtc, failed DTLS certificate verification doesn't stop data channel communication

Details: ### Impact Data channel communication was incorrectly allowed with users who have failed DTLS certificate verification. This attack requires * Attacker knows the ICE password. * Only take place during PeerConnection handshake. This attack can be detected by monitoring `PeerConnectionState` in all versions of Pion WebRTC. ### Patches Users should upgrade to v3.0.15. The exact patch is https://github.com/pion/webrtc/commit/545613dcdeb5dedb01cce94175f40bcbe045df2e ### Workarounds Users should listen for when `PeerConnectionState` changes to `PeerConnectionStateFailed`. When it enters this state users should not continue using the PeerConnection. ### For more information If you have any questions or comments about this advisory: * Open an issue in https://github.com/pion/webrtc * Email us at [[email protected]](mailto:[email protected]) Thank you to https://github.com/Gaukas for discovering this.

References: https://github.com/pion/webrtc/security/advisories/GHSA-74xm-qj29-cq8p, https://nvd.nist.gov/vuln/detail/CVE-2021-28681, https://github.com/pion/webrtc/issues/1708, https://github.com/pion/webrtc/pull/1709, https://github.com/pion/webrtc/commit/545613dcdeb5dedb01cce94175f40bcbe045df2e, https://github.com/pion/webrtc, https://pkg.go.dev/vuln/GO-2021-0104