CVE-2025-24947

Published: Feb 20, 2025Modified: Jun 17, 2026Deferred

5.3

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitability: 3.9 / Impact: 1.4

Source: MITRE (Secondary)

Description

A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 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 is caused by XXH32 usage.

Related CWEs

CWE-407

Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

References (3)

https://github.com/litespeedtech/lsquic/releases/tag/v4.2.0

Source: cve@mitre.org

https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory

Source: cve@mitre.org

https://xxhash.com

Source: cve@mitre.org

Timeline

No history available yet.