CVE-2017-8903

Publication date 11 May 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

Xen through 4.8.x on 64-bit platforms mishandles page tables after an IRET hypercall, which might allow PV guest OS users to execute arbitrary code on the host OS, aka XSA-213.

Read the notes from the security team

Status

Package Ubuntu Release Status
xen 17.04 zesty
Fixed 4.8.0-1ubuntu2.1
16.10 yakkety
Fixed 4.7.2-0ubuntu1.2
16.04 LTS xenial
Fixed 4.6.5-0ubuntu1.1
14.04 LTS trusty
Fixed 4.4.2-0ubuntu0.14.04.11

Notes

mdeslaur

This is XSA-213

Severity score breakdown

Parameter Value
Base score 8.8 · High
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H