Vulnerabilities > Citrix > Xenserver > 6.1

DATE CVE VULNERABILITY TITLE RISK
2016-08-02 CVE-2016-6259 Improper Input Validation vulnerability in multiple products
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.
local
low complexity
xen citrix CWE-20
4.9
2016-08-02 CVE-2016-6258 Improper Access Control vulnerability in multiple products
The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
local
low complexity
xen citrix CWE-284
7.2
2016-05-11 CVE-2016-3712 Integer Overflow or Wraparound vulnerability in multiple products
Integer overflow in the VGA module in QEMU allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) by editing VGA registers in VBE mode.
5.5
2016-05-11 CVE-2016-3710 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
7.2