{"id":"USN-4707-1","summary":"tcmu vulnerability","details":"It was discovered that TCMU lacked a check for transport-layer restrictions,\nallowing remote attackers to read or write files via directory traversal in\nan XCOPY request.\n","modified":"2026-04-27T15:48:50.403760Z","published":"2021-01-28T13:41:59Z","related":["UBUNTU-CVE-2021-3139"],"upstream":["CVE-2021-3139","UBUNTU-CVE-2021-3139"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4707-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3139"}],"affected":[{"package":{"name":"tcmu","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/tcmu@1.5.2-5ubuntu0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.5.2-5ubuntu0.20.04.1"}]}],"versions":["1.4.0-1","1.5.2-2","1.5.2-2ubuntu1","1.5.2-3","1.5.2-4","1.5.2-5","1.5.2-5build1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.5.2-5ubuntu0.20.04.1","binary_name":"libtcmu2"},{"binary_version":"1.5.2-5ubuntu0.20.04.1","binary_name":"tcmu-runner"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-3139"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4707-1.json"}}],"schema_version":"1.7.5"}