CVE-2023-46239: quic-go vulnerable to pointer dereference that can lead to panic

October 30, 2023

quic-go is an implementation of the QUIC transport protocol in Go. By serializing an ACK frame after the CRYTPO that allows a node to complete the handshake, a remote node could trigger a nil pointer dereference (leading to a panic) when the node attempted to drop the Handshake packet number space.

Impact

An attacker can bring down a quic-go node with very minimal effort. Completing the QUIC handshake only requires sending and receiving a few packets.

Patches

v0.37.3 contains a patch. Versions before v0.37.0 are not affected.

References

github.com/advisories/GHSA-3q6m-v84f-6p9h
github.com/quic-go/quic-go/commit/b6a4725b60f1fe04e8f1ddcc3114e290fcea1617
github.com/quic-go/quic-go/releases/tag/v0.37.3
github.com/quic-go/quic-go/security/advisories/GHSA-3q6m-v84f-6p9h

Code Behaviors & Features

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