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Candidate: CVE-2016-6259
PublicDate: 2016-08-02
References:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6259
http://xenbits.xen.org/xsa/advisory-183.html
Description:
Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention
(SMAP) whitelisting in 32-bit exception and event delivery, which allows
local 32-bit PV guest OS kernels to cause a denial of service (hypervisor
and VM crash) by triggering a safety check.
Ubuntu-Description:
Notes:
mdeslaur> 4.5+ only
Bugs:
Priority: medium
Discovered-by: Andrew Cooper
Assigned-to:
Patches_xen:
Tags_xen: universe-binary
upstream_xen: needs-triage
precise_xen: not-affected (4.1.6.1-0ubuntu0.12.04.11)
trusty_xen: not-affected (4.4.2-0ubuntu0.14.04.6)
vivid/ubuntu-core_xen: DNE
vivid/stable-phone-overlay_xen: DNE
wily_xen: ignored (reached end-of-life)
xenial_xen: released (4.6.0-1ubuntu4.2)
devel_xen: released (4.7.0-0ubuntu2)
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