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citrix xenserver 6.1 vulnerabilities and exploits

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0.001
EPSS

CVE-2016-6259

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.
Xen Xen 4.5.0Xen Xen 4.5.1Xen Xen 4.5.2Xen Xen 4.5.3Xen Xen 4.6.0Xen Xen 4.6.1Xen Xen 4.6.3Xen Xen 4.7.0Citrix Xenserver 6.0Citrix Xenserver 6.0.2Citrix Xenserver 6.1Citrix Xenserver 6.2.0
0.000
EPSS

CVE-2016-6258

The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and previous versions allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
Xen Xen 3.4.0Xen Xen 3.4.2Xen Xen 3.4.3Xen Xen 3.4.4Xen Xen 4.0.0Xen Xen 4.0.1Xen Xen 4.0.3Xen Xen 4.0.4Xen Xen 4.1.0Xen Xen 4.1.1Xen Xen 4.1.2Xen Xen 4.1.3
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