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CVE-2016-6258

Publication date 2 August 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.8 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
xen 16.04 LTS xenial
Fixed 4.6.0-1ubuntu4.2
15.10 wily Ignored end of life
14.04 LTS trusty
Fixed 4.4.2-0ubuntu0.14.04.7
12.04 LTS precise
Fixed 4.1.6.1-0ubuntu0.12.04.12

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