CVE-2017-10920

Published: 05 July 2017

The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a GNTMAP_host_map unmapping, which allows guest OS users to cause a denial of service (count mismanagement and memory corruption) or obtain privileged host OS access, aka XSA-224 bug 1.

Priority

Medium

CVSS 3 base score: 10.0

Status

Package Release Status
xen
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 16.04 LTS (Xenial Xerus)
Released (4.6.5-0ubuntu1.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [4.4.2-0ubuntu0.14.04.12])
Binaries built from this source package are in Universe and so are supported by the community.