{"id":"CVE-2025-59530","sourceIdentifier":"security-advisories@github.com","published":"2025-10-10T16:15:52.387","lastModified":"2026-10-19T16:10:00.260","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"quic-go es una implementación del protocolo QUIC en Go. En versiones anteriores a la 0.49.0, 0.54.1 y 0.55.0, un servidor malintencionado o con comportamiento anómalo puede causar un ataque de denegación de servicio (DoS) en el cliente quic-go al desencadenar un fallo de aserción, lo que lleva a un bloqueo del proceso. Esto no requiere autenticación y puede ser explotado durante la fase de handshake. Esto se observó en la práctica con ciertas implementaciones de servidor. quic-go necesita poder manejar implementaciones de servidor con comportamiento anómalo, incluyendo aquellas que envían prematuramente un frame HANDSHAKE_DONE. Las versiones 0.49.0, 0.54.1 y 0.55.0 descartan las claves iniciales al recibir un frame HANDSHAKE_DONE, manejando así correctamente los frames HANDSHAKE_DONE prematuros."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"quic-go","product":"quic-go","versions":[{"version":"< 0.49.1","status":"affected"},{"version":">= 0.5.0, < 0.54.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-10-10T16:31:32.909241Z","id":"CVE-2025-59530","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-617"},{"lang":"en","value":"CWE-755"}]}],"references":[{"url":"https://github.com/quic-go/quic-go/blob/v0.55.0/connection.go#L2682-L2685","source":"security-advisories@github.com"},{"url":"https://github.com/quic-go/quic-go/pull/5354","source":"security-advisories@github.com"},{"url":"https://github.com/quic-go/quic-go/security/advisories/GHSA-47m2-4cr7-mhcw","source":"security-advisories@github.com"}]}