{"id":"UBUNTU-CVE-2020-27347","details":"In tmux before version 3.1c the function input_csi_dispatch_sgr_colon() in file input.c contained a stack-based buffer-overflow that can be exploited by terminal output.","modified":"2026-02-04T03:42:26.649040Z","published":"2020-11-04T00:00:00Z","related":["USN-4618-1"],"upstream":["CVE-2020-27347"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-27347"},{"type":"REPORT","url":"https://raw.githubusercontent.com/tmux/tmux/3.1c/CHANGES"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4618-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-27347"}],"affected":[{"package":{"name":"tmux","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/tmux@3.0a-2ubuntu0.2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0a-2ubuntu0.2"}]}],"versions":["2.9a-3build1","2.9a-3build2","3.0-1","3.0a-1","3.0a-2","3.0a-2ubuntu0.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"tmux","binary_version":"3.0a-2ubuntu0.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27347.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}