Upstream information

CVE-2016-4480 at MITRE

Description

The guest_walk_tables function in arch/x86/mm/guest_walk.c in Xen 4.6.x and earlier does not properly handle the Page Size (PS) page table entry bit at the L4 and L3 page table levels, which might allow local guest OS users to gain privileges via a crafted mapping of memory.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.2
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 8.4
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3
SUSE Bugzilla entries: 978288 [RESOLVED / DUPLICATE], 978295 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Point of Sale 11 SP3
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-kmp-pae >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-libs >= 4.2.5_21-27.1
  • xen-tools-domU >= 4.2.5_21-27.1
Patchnames:
sleposp3-xen-12836
SUSE Linux Enterprise Server 11 SP2-LTSS
  • xen >= 4.1.6_08-29.1
  • xen-devel >= 4.1.6_08-29.1
  • xen-doc-html >= 4.1.6_08-29.1
  • xen-doc-pdf >= 4.1.6_08-29.1
  • xen-kmp-default >= 4.1.6_08_3.0.101_0.7.40-29.1
  • xen-kmp-pae >= 4.1.6_08_3.0.101_0.7.40-29.1
  • xen-kmp-trace >= 4.1.6_08_3.0.101_0.7.40-29.1
  • xen-libs >= 4.1.6_08-29.1
  • xen-libs-32bit >= 4.1.6_08-29.1
  • xen-tools >= 4.1.6_08-29.1
  • xen-tools-domU >= 4.1.6_08-29.1
Patchnames:
slessp2-xen-12786
SUSE Linux Enterprise Server 11 SP3-LTSS
  • xen >= 4.2.5_21-27.1
  • xen-doc-html >= 4.2.5_21-27.1
  • xen-doc-pdf >= 4.2.5_21-27.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-kmp-pae >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-libs >= 4.2.5_21-27.1
  • xen-libs-32bit >= 4.2.5_21-27.1
  • xen-tools >= 4.2.5_21-27.1
  • xen-tools-domU >= 4.2.5_21-27.1
Patchnames:
slessp3-xen-12836
SUSE Linux Enterprise Server 12-LTSS
  • xen >= 4.4.4_04-22.22.2
  • xen-doc-html >= 4.4.4_04-22.22.2
  • xen-kmp-default >= 4.4.4_04_k3.12.60_52.54-22.22.2
  • xen-libs >= 4.4.4_04-22.22.2
  • xen-libs-32bit >= 4.4.4_04-22.22.2
  • xen-tools >= 4.4.4_04-22.22.2
  • xen-tools-domU >= 4.4.4_04-22.22.2
Patchnames:
SUSE-SLE-SERVER-12-2016-1476
SUSE Linux Enterprise Server for SAP Applications 12
  • xen >= 4.4.4_04-22.22.2
  • xen-doc-html >= 4.4.4_04-22.22.2
  • xen-kmp-default >= 4.4.4_04_k3.12.60_52.54-22.22.2
  • xen-libs >= 4.4.4_04-22.22.2
  • xen-libs-32bit >= 4.4.4_04-22.22.2
  • xen-tools >= 4.4.4_04-22.22.2
  • xen-tools-domU >= 4.4.4_04-22.22.2
Patchnames:
SUSE-SLE-SAP-12-2016-1476
SUSE Manager 2.1
  • xen >= 4.2.5_21-27.1
  • xen-doc-html >= 4.2.5_21-27.1
  • xen-doc-pdf >= 4.2.5_21-27.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-libs >= 4.2.5_21-27.1
  • xen-libs-32bit >= 4.2.5_21-27.1
  • xen-tools >= 4.2.5_21-27.1
  • xen-tools-domU >= 4.2.5_21-27.1
Patchnames:
sleman21-xen-12836
SUSE Manager Proxy 2.1
  • xen >= 4.2.5_21-27.1
  • xen-doc-html >= 4.2.5_21-27.1
  • xen-doc-pdf >= 4.2.5_21-27.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-libs >= 4.2.5_21-27.1
  • xen-libs-32bit >= 4.2.5_21-27.1
  • xen-tools >= 4.2.5_21-27.1
  • xen-tools-domU >= 4.2.5_21-27.1
Patchnames:
slemap21-xen-12836
SUSE OpenStack Cloud 5
  • xen >= 4.2.5_21-27.1
  • xen-doc-html >= 4.2.5_21-27.1
  • xen-doc-pdf >= 4.2.5_21-27.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.86-27.1
  • xen-libs >= 4.2.5_21-27.1
  • xen-libs-32bit >= 4.2.5_21-27.1
  • xen-tools >= 4.2.5_21-27.1
  • xen-tools-domU >= 4.2.5_21-27.1
Patchnames:
sleclo50sp3-xen-12836


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SLES for SAP Applications xen Released
SUSE CaaS Platform 4.5 xen Not affected
SUSE Enterprise Storage 7 xen Not affected
SUSE Linux Enterprise Desktop 11 SP2 xen Released
SUSE Linux Enterprise Desktop 11 SP3 xen Released
SUSE Linux Enterprise Desktop 11 SP4 xen Released
SUSE Linux Enterprise Desktop 12 xen Released
SUSE Linux Enterprise Desktop 12 SP1 xen Released
SUSE Linux Enterprise Desktop 15 SP3 xen Not affected
SUSE Linux Enterprise Desktop 15 SP4 xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 xen Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4 xen Not affected
SUSE Linux Enterprise Micro 5.0 xen Not affected
SUSE Linux Enterprise Micro 5.1 xen Not affected
SUSE Linux Enterprise Micro 5.2 xen Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 xen Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 xen Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 xen Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 xen Not affected
SUSE Linux Enterprise Point of Service 11 SP3 xen In progress
SUSE Linux Enterprise Real Time 15 SP2 xen Not affected
SUSE Linux Enterprise Server 11 SP1 xen Released
SUSE Linux Enterprise Server 11 SP1 LTSS xen Released
SUSE Linux Enterprise Server 11 SP2 xen Released
SUSE Linux Enterprise Server 11 SP2 LTSS xen Released
SUSE Linux Enterprise Server 11 SP2 for VMware xen Released
SUSE Linux Enterprise Server 11 SP3 xen Released
SUSE Linux Enterprise Server 11 SP3 LTSS xen Released
SUSE Linux Enterprise Server 11 SP4 xen Released
SUSE Linux Enterprise Server 11 SP4 LTSS xen In progress
SUSE Linux Enterprise Server 12 xen Released
SUSE Linux Enterprise Server 12 LTSS xen Released
SUSE Linux Enterprise Server 12 SP1 xen Released
SUSE Linux Enterprise Server 12 SP2 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP3 BCL xen Not affected
SUSE Linux Enterprise Server 12 SP4 LTSS xen Not affected
SUSE Linux Enterprise Server 15 SP2 LTSS xen Not affected
SUSE Linux Enterprise Server 15 SP3 xen Not affected
SUSE Linux Enterprise Server 15 SP4 xen Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 xen Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP2 xen Released
SUSE Linux Enterprise Server for SAP Applications 11 SP3 xen Released
SUSE Linux Enterprise Server for SAP Applications 11 SP4 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP1 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 xen Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 xen Not affected
SUSE Linux Enterprise Software Development Kit 11 SP2 xen Released
SUSE Linux Enterprise Software Development Kit 11 SP3 xen Released
SUSE Linux Enterprise Software Development Kit 11 SP4 xen Released
SUSE Linux Enterprise Software Development Kit 12 xen Released
SUSE Linux Enterprise Software Development Kit 12 SP1 xen Released
SUSE Linux Enterprise Storage 7.1 xen Not affected
SUSE Manager Proxy 4.1 xen Not affected
SUSE Manager Proxy 4.2 xen Not affected
SUSE Manager Proxy 4.3 xen Not affected
SUSE Manager Retail Branch Server 4.1 xen Not affected
SUSE Manager Retail Branch Server 4.2 xen Not affected
SUSE Manager Retail Branch Server 4.3 xen Not affected
SUSE Manager Server 4.1 xen Not affected
SUSE Manager Server 4.2 xen Not affected
SUSE Manager Server 4.3 xen Not affected