CVE-2025-59530 (GCVE-0-2025-59530)
Vulnerability from cvelistv5
Published
2025-10-10 16:09
Modified
2025-10-10 16:31
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-617 - Reachable Assertion
  • CWE-755 - Improper Handling of Exceptional Conditions
Summary
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.
References
Impacted products
Vendor Product Version
quic-go quic-go Version: < 0.49.1
Version: >= 0.5.0, < 0.54.1
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