Candidate: CVE-2016-9382
PublicDate: 2017-01-23 21:59:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9382
 https://xenbits.xen.org/xsa/advisory-192.html
Description:
 Xen 4.0.x through 4.7.x mishandle x86 task switches to VM86 mode, which
 allows local 32-bit x86 HVM guest OS users to gain privileges or cause a
 denial of service (guest OS crash) by leveraging a guest operating system
 that uses hardware task switching and allows a new task to start in VM86
 mode.
Ubuntu-Description:
Notes:
 mdeslaur> This is XSA-192
Bugs:
Priority: medium
Discovered-by: Jan Beulich
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [7.8 HIGH]

Patches_xen:
Tags_xen: universe-binary
upstream_xen: needed
precise_xen: released (4.1.6.1-0ubuntu0.12.04.13)
precise/esm_xen: DNE (precise was released [4.1.6.1-0ubuntu0.12.04.13])
trusty_xen: released (4.4.2-0ubuntu0.14.04.9)
trusty/esm_xen: DNE (trusty was released [4.4.2-0ubuntu0.14.04.9])
vivid/ubuntu-core_xen: DNE
vivid/stable-phone-overlay_xen: DNE
xenial_xen: released (4.6.0-1ubuntu4.3)
esm-infra/xenial_xen: released (4.6.0-1ubuntu4.3)
yakkety_xen: released (4.7.0-0ubuntu2.1)
zesty_xen: released (4.8.0-1ubuntu1)
devel_xen: released (4.8.0-1ubuntu1)