Buffer overflow in hw/pt-msi.c in Xen 4.6.x and earlier, when using the qemu-xen-traditional (aka qemu-dm) device model, allows local x86 HVM guest administrators to gain privileges by leveraging a system with access to a passed-through MSI-X capable physical PCI device and MSI-X table entries, related to a "write path."
http://support.citrix.com/article/CTX203879
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
http://www.securityfocus.com/bid/79579
http://www.securitytracker.com/id/1034481
Source: MITRE
Published: 2016-04-14
Updated: 2017-07-01
Type: CWE-119
Base Score: 6.6
Vector: AV:L/AC:M/Au:S/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 2.7
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Impact Score: 6
Exploitability Score: 0.8
Severity: HIGH