Published: 02/08/2016 Updated: 21/11/2024

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 4.5.0
xen xen 4.5.1
xen xen 4.5.2
xen xen 4.5.3
xen xen 4.6.0
xen xen 4.6.1
xen xen 4.6.3
xen xen 4.7.0
citrix xenserver 6.0
citrix xenserver 6.0.2
citrix xenserver 6.1
citrix xenserver 6.2.0
citrix xenserver 6.5.0
citrix xenserver 7.0

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

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CVE-2016-6259

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