VULNERABILITY INTELLIGENCE
CVE-2017-5551
CVSS score4.4 MEDIUM
EPSS probability0.42%
CISA KEVNot currently listed
Published2017-02-06
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Description
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.
Primary references
- cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
- cve@mitre.org
- cve@mitre.org — Release Notes, Vendor Advisory
- cve@mitre.org — Mailing List, Patch, Third Party Advisory
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org
- cve@mitre.org — Issue Tracking, Patch
- cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Patch, Third Party Advisory