CVE-2016-3159
En bref
- Source
- NVD
- EPSS
- EPSS 0.40 % · centile 34 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mitre
- Statut NVD
- Modified
Description
The fpu_fxrstor function in arch/x86/i387.c in Xen 4.x does not properly handle writes to the hardware FSW.ES bit when running on AMD64 processors, which allows local guest OS users to obtain sensitive register content information from another guest by leveraging pending exception and mask bits. NOTE: this vulnerability exists because of an incorrect fix for CVE-2013-2076.
Faiblesses (CWE)
- CWE-200 — Exposition d'informations sensibles à un acteur non autorisé
- CWE-284 — Contrôle d'accès incorrect
Références
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181699.html
- http://xenbits.xen.org/xsa/advisory-172.html
- http://www.securityfocus.com/bid/85716
- http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181729.html
- http://xenbits.xen.org/xsa/xsa172.patch
- http://www.securitytracker.com/id/1035435
- http://support.citrix.com/article/CTX209443
- http://www.debian.org/security/2016/dsa-3554
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | LOW 3.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 1.7 | AV:L/AC:L/Au:S/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2016-4211
- GCVE · GCVE-0-2016-3159
Avis du CERT-FR
- CERTFR-2016-AVI-133 — Multiples vulnérabilités dans Citrix XenServer · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*≥ 4.3.0 ≤ 4.3.4cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*≥ 4.4.0 ≤ 4.4.4cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*≥ 4.5.0 ≤ 4.5.3cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*≥ 4.6.0 ≤ 4.6.1cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
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 |