CVE-2020-27813

HIGH

gorilla/websocket < 1.4.1 - Denial of Service via WebSocket Frame Length Integer Overflow

Title source: llm

Description

An integer overflow vulnerability exists with the length of websocket frames received via a websocket connection. An attacker would use this flaw to cause a denial of service attack on an HTTP Server allowing websocket connections.

References (4)

Core 4

Core References

Mailing List, Third Party Advisory mailing-list

https://lists.debian.org/debian-lts-announce/2021/01/msg00008.html

Mailing List mailing-list

https://lists.debian.org/debian-lts-announce/2023/05/msg00012.html

Issue Tracking, Third Party Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=1902111

Third Party Advisory

https://github.com/gorilla/websocket/security/advisories/GHSA-jf24-p9p9-4rjh

Scores

CVSS v3 7.5

EPSS 0.0234

EPSS Percentile 81.4%

Attack Vector NETWORK

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

Details

CWE

CWE-190 CWE-400

Status published

Products (3)

debian/debian_linux 9.0

gorilla/websocket 0 - 1.4.1Go

gorillatoolkit/websocket < 1.4.1

Published Dec 02, 2020

Tracked Since Feb 18, 2026