Description
Netty QUIC codec is a QUIC codec for netty which makes use of quiche. 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). This vulnerability is fixed in 0.0.71.Final.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://github.com/netty/netty-incubator-codec-quic/security/advisories/GHSA-hqqc-jr88-p6x2
Patch x_refsource_misc
https://github.com/netty/netty-incubator-codec-quic/commit/e059bd9b78723f8b035e0c547e42ce263f03461c
Various Sources x_refsource_misc
https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
Scores
CVSS v3
5.3
EPSS
0.0048
EPSS Percentile
37.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-407
Status
published
Products (2)
io.netty.incubator/netty-incubator-codec-quic
0 - 0.0.71.FinalMaven
netty/netty-incubator-codec-quic
< 0.0.71.Final
Published
Mar 31, 2025
Tracked Since
Feb 18, 2026