Debian Security Advisory

DLA-3420-1 golang-websocket -- LTS security update

Date Reported:
14 May 2023
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-27813.
More information:

An integer overflow vulnerability exists in golang-websocket, a Go package implementing the WebSocket protocol connection. An attacker would use this flaw to cause a denial of service attack on an HTTP Server allowing websocket connections.

The following reverse-dependencies have been rebuilt against the new golangwebsocket version: hugo and gitlab-workhorse

For Debian 10 buster, this problem has been fixed in version 1.4.0-1+deb10u1.

We recommend that you upgrade your golang-websocket packages.

For the detailed security status of golang-websocket please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: