Reachable Assertion Affecting golang-github-lucas-clemente-quic-go package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-GOLANGGITHUBLUCASCLEMENTEQUICGO-13537018
- published13 Oct 2025
- disclosed10 Oct 2025
Introduced: 10 Oct 2025
NewCVE-2025-59530 (opens in a new tab)How to fix?
There is no fixed version for Debian:14 golang-github-lucas-clemente-quic-go.
NVD Description
Note: Versions mentioned in the description apply only to the upstream golang-github-lucas-clemente-quic-go package and not the golang-github-lucas-clemente-quic-go package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
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.