Debian Security Advisory

DLA-2520-1 golang-websocket -- LTS security update

Date Reported:
07 Jan 2021
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2020-27813.
More information:

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

For Debian 9 stretch, this problem has been fixed in version 1.1.0-1+deb9u1.

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: