Published: 02/08/2016 Updated: 04/08/2016

CVSS v2 Base Score: 4.9 | Impact Score: 6.9 | Exploitability Score: 3.9

CVSS v3 Base Score: 6.2 | Impact Score: 3.6 | Exploitability Score: 2.5

VMScore: 436

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Xen 4.5.x up to and including 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.

Vulnerable Product	Search on Vulmon	Subscribe to Product
xen xen 4.7.0
xen xen 4.6.3
xen xen 4.5.0
xen xen 4.5.1
xen xen 4.6.1
xen xen 4.5.3
xen xen 4.6.0
xen xen 4.5.2
citrix xenserver 6.2.0
citrix xenserver 7.0
citrix xenserver 6.5.0
citrix xenserver 6.0.2
citrix xenserver 6.0
citrix xenserver 6.1

Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer that may allow a malicious administrator of a PV guest VM to compromise or crash the host These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including Citrix XenServer 70 The following vulnerabilities have ...

CWE-20 http://xenbits.xen.org/xsa/xsa183-4.6.patch http://xenbits.xen.org/xsa/xsa183-unstable.patch http://support.citrix.com/article/CTX214954 http://xenbits.xen.org/xsa/advisory-183.html http://www.securityfocus.com/bid/92130 http://www.securitytracker.com/id/1036447 https://nvd.nist.gov https://support.citrix.com/article/CTX214954

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CVE-2016-6259

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