PT-2025-7544 · Kwik · Kwik

Ncc-Pbottine · Published 2025-02-20 · Updated 2025-02-20 · CVE-2025-23020

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Kwik versions prior to 0.10.1

Description A hash collision vulnerability in the hash table used to manage connections allows remote attackers to cause a considerable CPU load on the server by initiating connections with colliding Source Connection IDs (SCIDs). This results in a Hash DoS attack.

Recommendations For versions prior to 0.10.1, update to version 0.10.1 or later to resolve the issue. As a temporary workaround, consider implementing measures to limit the impact of excessive connection requests on the server, such as rate limiting or IP blocking, until a patch is applied.

Fix

Weakness Enumeration

CWE-407

Related Identifiers

CVE-2025-23020

GHSA-9F57-9RHG-4HVM

Affected Products

Kwik

References · 10

• https://nvd.nist.gov/vuln/detail/CVE-2025-23020 · Security Note
• https://osv.dev/vulnerability/CVE-2025-23020 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-9f57-9rhg-4hvm · Vendor Advisory
• https://github.com/ptrd/kwik · Note
• https://github.com/ptrd/kwik/commit/b0733d72bad76bc5d8df2f4a7792ebb2539ebdc8 · Note
• https://github.com/ptrd/kwik/releases/tag/v0.10.1 · Note
• https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory · Note
• https://t.me/cvedetector/18513 · Telegram Post
• https://t.me/cvenotify/111849 · Telegram Post
• https://twitter.com/CVEnew/status/1892409493239091602 · Twitter Post