CVE-2014-8989
At a glance
- Source
- NVD
- EPSS
- EPSS 0.50 % · percentile 43 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
The Linux kernel through 3.17.4 does not properly restrict dropping of supplemental group memberships in certain namespace scenarios, which allows local users to bypass intended file permissions by leveraging a POSIX ACL containing an entry for the group category that is more restrictive than the entry for the other category, aka a "negative groups" issue, related to kernel/groups.c, kernel/uid16.c, and kernel/user_namespace.c.
Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.html
- http://www.ubuntu.com/usn/USN-2515-1
- http://www.securityfocus.com/bid/71154
- http://www.ubuntu.com/usn/USN-2518-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:058
- http://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.html
- http://thread.gmane.org/gmane.linux.man/7385/
- http://www.ubuntu.com/usn/USN-2517-1
- http://www.openwall.com/lists/oss-security/2014/11/20/4
- http://www.ubuntu.com/usn/USN-2516-1
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 2.0 | MEDIUM 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2014-8816
- GCVE · GCVE-0-2014-8989
CERT-FR advisories
- CERTFR-2015-AVI-359 — Multiples vulnérabilités dans le noyau Linux de Fedora · cert.ssi.gouv.fr
- CERTFR-2015-AVI-081 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≤ 3.17.3cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*- +164 more
Affected products
| Product | Versions |
|---|---|
| affected n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |