CVE-2017-14318
En bref
- Source
- NVD
- EPSS
- EPSS 0.35 % · centile 29 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- mitre
- Statut NVD
- Modified
Description
An issue was discovered in Xen 4.5.x through 4.9.x. The function `__gnttab_cache_flush` handles GNTTABOP_cache_flush grant table operations. It checks to see if the calling domain is the owner of the page that is to be operated on. If it is not, the owner's grant table is checked to see if a grant mapping to the calling domain exists for the page in question. However, the function does not check to see if the owning domain actually has a grant table or not. Some special domains, such as `DOMID_XEN`, `DOMID_IO` and `DOMID_COW` are created without grant tables. Hence, if __gnttab_cache_flush operates on a page owned by these special domains, it will attempt to dereference a NULL pointer in the domain struct.
Faiblesses (CWE)
- CWE-476 — Déréférencement de pointeur nul
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/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-2017-5821
- GCVE · GCVE-0-2017-14318
Avis du CERT-FR
- CERTFR-2026-AVI-1302 — Multiples vulnérabilités dans Xen · cert.ssi.gouv.fr
- CERTFR-2017-AVI-302 — Multiples vulnérabilités dans Citrix XenServer · cert.ssi.gouv.fr
- CERTFR-2017-AVI-292 — Multiples vulnérabilités dans Xen · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.5.2:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.5.3:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.5.5:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.1:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.3:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.4:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.5:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.6.6:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.7.0:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.7.1:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.7.2:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.7.3:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.8.0:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.8.1:*:*:*:*:*:*:*cpe:2.3:o:xen:xen:4.9.0:*:*:*:*:*:*:*
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 |