{"id":"DEBIAN-CVE-2018-7738","details":"In util-linux before 2.32-rc1, bash-completion/umount allows local users to gain privileges by embedding shell commands in a mountpoint name, which is mishandled during a umount command (within Bash) by a different user, as demonstrated by logging in as root and entering umount followed by a tab character for autocompletion.","modified":"2026-09-01T20:04:01.741235319Z","published":"2018-03-07T02:29:03.533Z","upstream":["CVE-2018-7738"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2018-7738"}],"affected":[{"package":{"name":"bash-completion","ecosystem":"Debian:12","purl":"pkg:deb/debian/bash-completion?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.11-6","1:2.11-7","1:2.11-8","1:2.12.0-1","1:2.13.0-1","1:2.14.0-1","1:2.14.0-2","1:2.16.0-1","1:2.16.0-2","1:2.16.0-3","1:2.16.0-4","1:2.16.0-5","1:2.16.0-6","1:2.16.0-7","1:2.16.0-8"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}},{"package":{"name":"bash-completion","ecosystem":"Debian:13","purl":"pkg:deb/debian/bash-completion?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.16.0-7","1:2.16.0-8"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}},{"package":{"name":"bash-completion","ecosystem":"Debian:14","purl":"pkg:deb/debian/bash-completion?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:2.16.0-7","1:2.16.0-8"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}},{"package":{"name":"util-linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/util-linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.31.1-0.5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}},{"package":{"name":"util-linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/util-linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.31.1-0.5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}},{"package":{"name":"util-linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/util-linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.31.1-0.5"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-7738.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}