{"id":"USN-4690-1","summary":"coturn vulnerability","details":"It was discovered that coTURN allowed peers to connect and relay packets to\nloopback addresses in the range of 127.x.x.x. A malicious user could use this\nvulnerability to insert packages into the loopback interface.\n","modified":"2026-02-10T04:42:02Z","published":"2021-01-11T21:19:33Z","related":["UBUNTU-CVE-2020-26262"],"upstream":["CVE-2020-26262","UBUNTU-CVE-2020-26262"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4690-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26262"}],"affected":[{"package":{"name":"coturn","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/coturn@4.5.0.3-1ubuntu0.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0.3-1ubuntu0.4"}]}],"versions":["4.4.5.4-2","4.5.0.2-3","4.5.0.3-1","4.5.0.3-1build1","4.5.0.3-1ubuntu0.2","4.5.0.3-1ubuntu0.3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.5.0.3-1ubuntu0.4","binary_name":"coturn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4690-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-26262"}],"ecosystem":"Ubuntu:16.04:LTS"}}},{"package":{"name":"coturn","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/coturn@4.5.0.7-1ubuntu2.18.04.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.0.7-1ubuntu2.18.04.3"}]}],"versions":["4.5.0.6-1ubuntu2","4.5.0.7-1ubuntu1","4.5.0.7-1ubuntu2","4.5.0.7-1ubuntu2.18.04.1","4.5.0.7-1ubuntu2.18.04.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.5.0.7-1ubuntu2.18.04.3","binary_name":"coturn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4690-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-26262"}],"ecosystem":"Ubuntu:18.04:LTS"}}},{"package":{"name":"coturn","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/coturn@4.5.1.1-1.1ubuntu0.20.04.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1.1-1.1ubuntu0.20.04.2"}]}],"versions":["4.5.1.1-1.1build1","4.5.1.1-1.1build2","4.5.1.1-1.1ubuntu0.20.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.5.1.1-1.1ubuntu0.20.04.2","binary_name":"coturn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4690-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2020-26262"}],"ecosystem":"Ubuntu:20.04:LTS"}}}],"schema_version":"1.7.3"}