{"id":"CVE-2016-1575","details":"The overlayfs implementation in the Linux kernel through 4.5.2 does not properly maintain POSIX ACL xattr data, which allows local users to gain privileges by leveraging a group-writable setgid directory.","modified":"2026-03-14T14:08:28.430819Z","published":"2016-05-02T10:59:23.237Z","references":[{"type":"ADVISORY","url":"http://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-1575.html"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2016/02/24/7"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/10/18/1"},{"type":"ADVISORY","url":"https://launchpad.net/bugs/1534961"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e9f57ebcba563e0cd532926cab83c92bb4d79360"},{"type":"EVIDENCE","url":"http://www.halfdog.net/Security/2016/UserNamespaceOverlayfsXattrSetgidPrivilegeEscalation/"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.5.2"}]},{"events":[{"introduced":"0"},{"last_affected":"15.04"}]},{"events":[{"introduced":"0"},{"last_affected":"12.04"}]},{"events":[{"introduced":"0"},{"last_affected":"14.04"}]},{"events":[{"introduced":"0"},{"last_affected":"15.10"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"16.10"}]},{"events":[{"introduced":"0"},{"last_affected":"15.04"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-1575.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}