CVE-2015-8554

MEDIUM

Description

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."

References

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

http://xenbits.xen.org/xsa/advisory-164.html

https://security.gentoo.org/glsa/201604-03

Details

Source: MITRE

Published: 2016-04-14

Updated: 2017-07-01

Type: CWE-119

Risk Information

CVSS v2.0

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

CVSS v3.0

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