{"id":"UBUNTU-CVE-2020-27813","details":"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.","modified":"2026-01-30T01:15:19.758166Z","published":"2020-12-02T01:15:00Z","related":["USN-6208-1"],"upstream":["CVE-2020-27813"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27813"},{"type":"REPORT","url":"https://github.com/gorilla/websocket/security/advisories/GHSA-jf24-p9p9-4rjh"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6208-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-27813"}],"affected":[{"package":{"name":"golang-websocket","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/golang-websocket@0.0~git20150811.0.b6ab76f-1ubuntu0.1~esm1?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0~git20150811.0.b6ab76f-1ubuntu0.1~esm1"}]}],"versions":["0.0~git20140119-1","0.0~git20150811.0.b6ab76f-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"golang-websocket-dev","binary_version":"0.0~git20150811.0.b6ab76f-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27813.json"}},{"package":{"name":"golang-websocket","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/golang-websocket@1.2.0-1ubuntu2+esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0-1ubuntu2+esm1"}]}],"versions":["1.2.0-1ubuntu1","1.2.0-1ubuntu2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"golang-github-gorilla-websocket-dev","binary_version":"1.2.0-1ubuntu2+esm1"},{"binary_name":"golang-websocket-dev","binary_version":"1.2.0-1ubuntu2+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27813.json"}},{"package":{"name":"golang-websocket","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/golang-websocket@1.4.0-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-gorilla-websocket-dev","binary_version":"1.4.0-1"},{"binary_name":"golang-websocket-dev","binary_version":"1.4.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27813.json"}},{"package":{"name":"golang-websocket","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/golang-websocket@1.4.0-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-websocket-dev","binary_version":"1.4.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27813.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}