GitHub Advisoryadvisory · Maven

GHSA-hqqc-jr88-p6x2 Netty QUIC hash collision DoS attack

MEDIUM Published 2025-03-31 Modified 2025-03-31 Official page ↗
Aliases
CVE-2025-29908
Ecosystem
Maven
Packages
io.netty.incubator:netty-incubator-codec-quic
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-407
Reviewed
2025-03-31

Affected packages

• Maven io.netty.incubator:netty-incubator-codec-quic: < 0.0.71.Final → fixed in 0.0.71.Final

Description

An issue was discovered in the codec. A hash collision vulnerability (in the hash map used to manage connections) allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs). See https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory

Related

Alias · CVE (1)

  • CVE-2025-29908 Netty QUIC codec is a QUIC codec for netty which makes use of quiche. vulnerability

Weakness · CWE (1)

  • CWE-407 Inefficient Algorithmic Complexity weakness

References