{"id":"DEBIAN-CVE-2017-18018","details":"In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain file with a symlink during use of the POSIX \"-R -L\" options, which allows local users to modify the ownership of arbitrary files by leveraging a race condition.","modified":"2026-09-01T20:03:46.911345589Z","published":"2018-01-04T04:29:00.190Z","upstream":["CVE-2017-18018"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2017-18018"}],"affected":[{"package":{"name":"coreutils","ecosystem":"Debian:12","purl":"pkg:deb/debian/coreutils?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.1-1","9.10-1","9.4-1","9.4-2","9.4-3","9.4-3.1","9.5-1","9.6-1","9.6-2","9.7-1","9.7-2","9.7-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-18018.json"}},{"package":{"name":"coreutils","ecosystem":"Debian:13","purl":"pkg:deb/debian/coreutils?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.10-1","9.7-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-18018.json"}},{"package":{"name":"coreutils","ecosystem":"Debian:14","purl":"pkg:deb/debian/coreutils?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.10-1","9.7-3"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2017-18018.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N"}]}