CVE-2017-14318
CVE-2017-14318
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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.
CVSS 6.5 · Moyenne · EPSS 0,4% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
n/a
- Versions du logiciel
- n/a: Concernée
Aucun correctif publié
xen Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 4.8.2+xsa245-0+deb9u1
Mettez à jour vers 4.8.2+xsa245-0+deb9u1
xen Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 4.8.2+xsa245-0+deb9u1
Mettez à jour vers 4.8.2+xsa245-0+deb9u1
xen Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 4.8.2+xsa245-0+deb9u1
Mettez à jour vers 4.8.2+xsa245-0+deb9u1
xen Ubuntu:16.04:LTS
- Versions du logiciel
- 4.5.1-0ubuntu1
- 4.5.1-0ubuntu2
- 4.6.0-1ubuntu1
- 4.6.0-1ubuntu2
- 4.6.0-1ubuntu4
- 4.6.0-1ubuntu4.1
- 4.6.0-1ubuntu4.2
- 4.6.0-1ubuntu4.3
- 4.6.5-0ubuntu1
- 4.6.5-0ubuntu1.1
- 4.6.5-0ubuntu1.2
- Plages de versions concernées
- ECOSYSTEM: < 4.6.5-0ubuntu1.4
Mettez à jour vers 4.6.5-0ubuntu1.4