CVE-2014-7975
En bref
- Source
- NVD
- EPSS
- EPSS 0.46 % · centile 40 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mitre
- Statut NVD
- Modified
Description
The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call.
Références
- http://www.ubuntu.com/usn/USN-2418-1
- http://secunia.com/advisories/61145
- https://exchange.xforce.ibmcloud.com/vulnerabilities/96994
- http://www.ubuntu.com/usn/USN-2416-1
- http://www.ubuntu.com/usn/USN-2417-1
- http://www.ubuntu.com/usn/USN-2415-1
- http://www.ubuntu.com/usn/USN-2419-1
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0ef3a56b1c466629cd0bf482b09c7b0e5a085bb5
- http://www.securitytracker.com/id/1031180
- http://secunia.com/advisories/60174
- http://www.ubuntu.com/usn/USN-2421-1
- http://www.ubuntu.com/usn/USN-2420-1
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:1842
- http://secunia.com/advisories/62633
- http://www.openwall.com/lists/oss-security/2014/10/08/22
- http://secunia.com/advisories/62634
- http://thread.gmane.org/gmane.linux.kernel.stable/109312
- http://www.securityfocus.com/bid/70314
- https://bugzilla.redhat.com/show_bug.cgi?id=1151108
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2014-7824
- GCVE · GCVE-0-2014-7975
Avis du CERT-FR
- CERTFR-2014-AVI-495 — Multiples vulnérabilités dans le noyau linux Ubuntu · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≤ 3.17cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
Produits affectés
| Produit | 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 |