{"id":"CVE-2017-5551","details":"The simple_set_acl function in fs/posix_acl.c in the Linux kernel before 4.9.6 preserves the setgid bit during a setxattr call involving a tmpfs filesystem, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-7097.","modified":"2026-03-15T22:24:25.098534Z","published":"2017-02-06T06:59:00.717Z","related":["MGASA-2017-0063","MGASA-2017-0064","MGASA-2017-0065","SUSE-SU-2017:0333-1","SUSE-SU-2017:0407-1","SUSE-SU-2017:0437-1","SUSE-SU-2017:0464-1","SUSE-SU-2017:0471-1","SUSE-SU-2017:0494-1","SUSE-SU-2017:0575-1","SUSE-SU-2017:1102-1","SUSE-SU-2017:1990-1"],"references":[{"type":"WEB","url":"http://www.securitytracker.com/id/1038053"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3791"},{"type":"ADVISORY","url":"http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/95717"},{"type":"FIX","url":"http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31"},{"type":"FIX","url":"http://www.openwall.com/lists/oss-security/2017/01/21/3"},{"type":"FIX","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1416126"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.9.5"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5551.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"}]}