CVE-2017-5551
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2017-5551
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-5551.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2017-5551
- Downstream
- Related
- Published
- 2017-02-06T06:59:00Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 4.4 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The simplesetacl 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.
- References
-
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=497de07d89c1410d76a15bec2bb41f24a2a89f31
- http://www.debian.org/security/2017/dsa-3791
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6
- http://www.openwall.com/lists/oss-security/2017/01/21/3
- http://www.securityfocus.com/bid/95717
- https://github.com/torvalds/linux/commit/497de07d89c1410d76a15bec2bb41f24a2a89f31
- https://bugzilla.redhat.com/show_bug.cgi?id=1416126
- http://www.securitytracker.com/id/1038053