CVE-2015-8554

Publication date 14 April 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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."

Status

Package Ubuntu Release Status
qemu 15.10 wily
Not affected
15.04 vivid
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise Not in release
qemu-kvm 15.10 wily Not in release
15.04 vivid Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
xen 15.10 wily
Not affected
15.04 vivid
Not affected
14.04 LTS trusty
Fixed 4.4.2-0ubuntu0.14.04.4
12.04 LTS precise
Fixed 4.1.6.1-0ubuntu0.12.04.8

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Local
Attack complexity High
Privileges required High
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

References

Other references