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

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.15
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 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
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 >= 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-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 for SAP 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
openSUSE 13.2
  • xen >= 4.4.4_05-49.1
  • xen-debugsource >= 4.4.4_05-49.1
  • xen-devel >= 4.4.4_05-49.1
  • xen-doc-html >= 4.4.4_05-49.1
  • xen-kmp-default >= 4.4.4_05_k3.16.7_42-49.1
  • xen-kmp-default-debuginfo >= 4.4.4_05_k3.16.7_42-49.1
  • xen-kmp-desktop >= 4.4.4_05_k3.16.7_42-49.1
  • xen-kmp-desktop-debuginfo >= 4.4.4_05_k3.16.7_42-49.1
  • xen-libs >= 4.4.4_05-49.1
  • xen-libs-32bit >= 4.4.4_05-49.1
  • xen-libs-debuginfo >= 4.4.4_05-49.1
  • xen-libs-debuginfo-32bit >= 4.4.4_05-49.1
  • xen-tools >= 4.4.4_05-49.1
  • xen-tools-debuginfo >= 4.4.4_05-49.1
  • xen-tools-domU >= 4.4.4_05-49.1
  • xen-tools-domU-debuginfo >= 4.4.4_05-49.1
Patchnames:
openSUSE-2016-1169
openSUSE Leap 42.1
  • xen >= 4.5.3_10-15.2
  • xen-debugsource >= 4.5.3_10-15.2
  • xen-devel >= 4.5.3_10-15.2
  • xen-doc-html >= 4.5.3_10-15.2
  • xen-kmp-default >= 4.5.3_10_k4.1.31_30-15.2
  • xen-kmp-default-debuginfo >= 4.5.3_10_k4.1.31_30-15.2
  • xen-libs >= 4.5.3_10-15.2
  • xen-libs-32bit >= 4.5.3_10-15.2
  • xen-libs-debuginfo >= 4.5.3_10-15.2
  • xen-libs-debuginfo-32bit >= 4.5.3_10-15.2
  • xen-tools >= 4.5.3_10-15.2
  • xen-tools-debuginfo >= 4.5.3_10-15.2
  • xen-tools-domU >= 4.5.3_10-15.2
  • xen-tools-domU-debuginfo >= 4.5.3_10-15.2
Patchnames:
openSUSE-2016-1170