{"id":"UBUNTU-CVE-2017-7358","details":"In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.","modified":"2026-04-22T11:30:59.740465Z","published":"2017-04-04T21:00:00Z","related":["USN-3255-1"],"upstream":["CVE-2017-7358"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-7358"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3255-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-7358"}],"affected":[{"package":{"name":"lightdm","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/lightdm@1.18.3-0ubuntu1.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.18.3-0ubuntu1.1"}]}],"versions":["1.16.4-0ubuntu1","1.17.0-0ubuntu1","1.17.1-0ubuntu1","1.17.1-0ubuntu2","1.17.2-0ubuntu1","1.17.3-0ubuntu1","1.17.4-0ubuntu1","1.17.5-0ubuntu2","1.17.6-0ubuntu1","1.18.0-0ubuntu1","1.18.0-0ubuntu2","1.18.1-0ubuntu1","1.18.2-0ubuntu1","1.18.2-0ubuntu2","1.18.3-0ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"gir1.2-lightdm-1","binary_version":"1.18.3-0ubuntu1.1"},{"binary_name":"liblightdm-gobject-1-0","binary_version":"1.18.3-0ubuntu1.1"},{"binary_name":"liblightdm-qt-3-0","binary_version":"1.18.3-0ubuntu1.1"},{"binary_name":"liblightdm-qt5-3-0","binary_version":"1.18.3-0ubuntu1.1"},{"binary_version":"1.18.3-0ubuntu1.1","binary_name":"lightdm"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7358.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"high"}]}