CVE-2025-23020 Details
Description
An issue was discovered in Kwik before 0.10.1. A hash collision vulnerability (in the hash table 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).
A hash collision vulnerability has been identified in Kwik versions prior to 0.10.1. This vulnerability allows remote attackers to cause a significant CPU load on the server by initiating connections with colliding Source Connection IDs (SCIDs), leading to a Hash Denial-of-Service (DoS) attack. The issue arises from the hash table used to manage connections, which becomes inefficient when handling collisions, causing increased computational overhead on the server.
Users can upgrade to Kwik version 0.10.1 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Feb 20, 2025CISA-ADP
Assessed Feb 20, 2025References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory | [email protected] | BundleRemedyTechnical Analysis |
| https://github.com/ptrd/kwik/releases/tag/v0.10.1 | [email protected] | Release NotesVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-407 | Inefficient Algorithmic Complexity | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| ptrd kwik | All versions |
CPE
Remediation
| |
| litespeedtech lsquic | All versions |
CPE
Remediation
| |
| private-octopus picoquic | <= 3827b00 |
CPE
Remediation
| |
| alibaba xquic | All versions |
CPE
Remediation
| |
| apache trafficserver | All versions |
CPE
Remediation
| |
| ngtcp2 | All versions |
CPE
Remediation
| |
| ericsson rask | All versions |
CPE
Remediation
| |
| unmaintained quant | All versions |
CPE
Remediation
| |
| unmaintained pluginized quic | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Feb 20, 2025 | New CVE Received | [email protected] |