Description

quic-go is an implementation of the QUIC protocol in Go. In versions prior to 0.49.0, 0.54.1, and 0.55.0, a misbehaving or malicious server can cause a denial-of-service (DoS) attack on the quic-go client by triggering an assertion failure, leading to a process crash. This requires no authentication and can be exploited during the handshake phase. This was observed in the wild with certain server implementations. quic-go needs to be able to handle misbehaving server implementations, including those that prematurely send a HANDSHAKE_DONE frame. Versions 0.49.0, 0.54.1, and 0.55.0 discard Initial keys when receiving a HANDSHAKE_DONE frame, thereby correctly handling premature HANDSHAKE_DONE frames.

Weaknesses 2

References 3

• github.com https://github.com/quic-go/quic-go/blob/v0.55.0/connection.go#L2682-L2685
• github.com https://github.com/quic-go/quic-go/pull/5354
• github.com https://github.com/quic-go/quic-go/security/advisories/GHSA-47m2-4cr7-mhcw

Remediation