{"action":"Upgrade coreutils to 9.4-1 or later.","affected":[{"fixed":"9.4-1","introduced":"0"}],"component":"coreutils","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["9.4-1"],"id":"tcs_01M5NBHMVSWF43HN8W9P1HX5ZR","modified_at":"2026-09-22T07:01:56.931191308Z","published_at":"2017-02-07T15:59:00.333Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-2781","https://security-tracker.debian.org/tracker/CVE-2016-2781"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-2781#Debian:13/coreutils","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-2781"}],"summary":"chroot in GNU coreutils, when used with --userspec, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer."}