Upstream information

CVE-2018-12893 at MITRE

Description

An issue was discovered in Xen through 4.10.x. One of the fixes in XSA-260 added some safety checks to help prevent Xen livelocking with debug exceptions. Unfortunately, due to an oversight, at least one of these safety checks can be triggered by a guest. A malicious PV guest can crash Xen, leading to a Denial of Service. All Xen systems which have applied the XSA-260 fix are vulnerable. Only x86 systems are vulnerable. ARM systems are not vulnerable. Only x86 PV guests can exploit the vulnerability. x86 HVM and PVH guests cannot exploit the vulnerability. An attacker needs to be able to control hardware debugging facilities to exploit the vulnerability, but such permissions are typically available to unprivileged users.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  SUSE
Base Score 5.5
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
SUSE Bugzilla entry: 1097522 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE CaaS Platform ALL
  • xen >= 4.9.2_08-3.35.2
  • xen-libs >= 4.9.2_08-3.35.2
  • xen-tools-domU >= 4.9.2_08-3.35.2
Patchnames:
SUSE-CAASP-ALL-2018-1388
SUSE Enterprise Storage 4
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-Storage-4-2018-1414
SUSE Linux Enterprise Desktop 12 SP3
  • xen >= 4.9.2_08-3.35.2
  • xen-libs >= 4.9.2_08-3.35.2
  • xen-libs-32bit >= 4.9.2_08-3.35.2
Patchnames:
SUSE-SLE-DESKTOP-12-SP3-2018-1388
SUSE Linux Enterprise Module for Basesystem 15
  • xen >= 4.10.1_06-3.3.1
  • xen-libs >= 4.10.1_06-3.3.1
  • xen-tools-domU >= 4.10.1_06-3.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2018-1342
SUSE Linux Enterprise Module for Server Applications 15
  • xen >= 4.10.1_06-3.3.1
  • xen-devel >= 4.10.1_06-3.3.1
  • xen-tools >= 4.10.1_06-3.3.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-2018-1342
SUSE Linux Enterprise Point of Sale 11 SP3
  • xen >= 4.2.5_21-45.25.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-kmp-pae >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-libs >= 4.2.5_21-45.25.1
  • xen-tools-domU >= 4.2.5_21-45.25.1
Patchnames:
sleposp3-xen-13752
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-SLE-POS-12-SP2-CLIENT-2018-1414
SUSE Linux Enterprise Server 11 SP3-LTSS
  • xen >= 4.2.5_21-45.25.1
  • xen-doc-html >= 4.2.5_21-45.25.1
  • xen-doc-pdf >= 4.2.5_21-45.25.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-kmp-pae >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-libs >= 4.2.5_21-45.25.1
  • xen-libs-32bit >= 4.2.5_21-45.25.1
  • xen-tools >= 4.2.5_21-45.25.1
  • xen-tools-domU >= 4.2.5_21-45.25.1
Patchnames:
slessp3-xen-13752
SUSE Linux Enterprise Server 11 SP4
  • xen >= 4.4.4_34-61.32.1
  • xen-doc-html >= 4.4.4_34-61.32.1
  • xen-kmp-default >= 4.4.4_34_3.0.101_108.57-61.32.1
  • xen-kmp-pae >= 4.4.4_34_3.0.101_108.57-61.32.1
  • xen-libs >= 4.4.4_34-61.32.1
  • xen-libs-32bit >= 4.4.4_34-61.32.1
  • xen-tools >= 4.4.4_34-61.32.1
  • xen-tools-domU >= 4.4.4_34-61.32.1
Patchnames:
slessp4-xen-13698
SUSE Linux Enterprise Server 12 SP1-LTSS
  • xen >= 4.5.5_24-22.52.3
  • xen-doc-html >= 4.5.5_24-22.52.3
  • xen-kmp-default >= 4.5.5_24_k3.12.74_60.64.96-22.52.3
  • xen-libs >= 4.5.5_24-22.52.3
  • xen-libs-32bit >= 4.5.5_24-22.52.3
  • xen-tools >= 4.5.5_24-22.52.3
  • xen-tools-domU >= 4.5.5_24-22.52.3
Patchnames:
SUSE-SLE-SERVER-12-SP1-2018-1406
SUSE Linux Enterprise Server 12 SP2-LTSS
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2018-1414
SUSE Linux Enterprise Server 12 SP3
  • xen >= 4.9.2_08-3.35.2
  • xen-doc-html >= 4.9.2_08-3.35.2
  • xen-libs >= 4.9.2_08-3.35.2
  • xen-libs-32bit >= 4.9.2_08-3.35.2
  • xen-tools >= 4.9.2_08-3.35.2
  • xen-tools-domU >= 4.9.2_08-3.35.2
Patchnames:
SUSE-SLE-SERVER-12-SP3-2018-1388
SUSE Linux Enterprise Server 12-LTSS
  • xen >= 4.4.4_34-22.71.2
  • xen-doc-html >= 4.4.4_34-22.71.2
  • xen-kmp-default >= 4.4.4_34_k3.12.61_52.136-22.71.2
  • xen-libs >= 4.4.4_34-22.71.2
  • xen-libs-32bit >= 4.4.4_34-22.71.2
  • xen-tools >= 4.4.4_34-22.71.2
  • xen-tools-domU >= 4.4.4_34-22.71.2
Patchnames:
SUSE-SLE-SERVER-12-2018-1389
SUSE Linux Enterprise Server for SAP Applications 11 SP3-LTSS
  • xen >= 4.2.5_21-45.25.1
  • xen-doc-html >= 4.2.5_21-45.25.1
  • xen-doc-pdf >= 4.2.5_21-45.25.1
  • xen-kmp-default >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-kmp-pae >= 4.2.5_21_3.0.101_0.47.106.43-45.25.1
  • xen-libs >= 4.2.5_21-45.25.1
  • xen-libs-32bit >= 4.2.5_21-45.25.1
  • xen-tools >= 4.2.5_21-45.25.1
  • xen-tools-domU >= 4.2.5_21-45.25.1
Patchnames:
slessp3-xen-13752
SUSE Linux Enterprise Server for SAP Applications 11 SP4
  • xen >= 4.4.4_34-61.32.1
  • xen-doc-html >= 4.4.4_34-61.32.1
  • xen-kmp-default >= 4.4.4_34_3.0.101_108.57-61.32.1
  • xen-kmp-pae >= 4.4.4_34_3.0.101_108.57-61.32.1
  • xen-libs >= 4.4.4_34-61.32.1
  • xen-libs-32bit >= 4.4.4_34-61.32.1
  • xen-tools >= 4.4.4_34-61.32.1
  • xen-tools-domU >= 4.4.4_34-61.32.1
Patchnames:
slessp4-xen-13698
SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • xen >= 4.5.5_24-22.52.3
  • xen-doc-html >= 4.5.5_24-22.52.3
  • xen-kmp-default >= 4.5.5_24_k3.12.74_60.64.96-22.52.3
  • xen-libs >= 4.5.5_24-22.52.3
  • xen-libs-32bit >= 4.5.5_24-22.52.3
  • xen-tools >= 4.5.5_24-22.52.3
  • xen-tools-domU >= 4.5.5_24-22.52.3
Patchnames:
SUSE-SLE-SAP-12-SP1-2018-1406
SUSE Linux Enterprise Server for SAP Applications 12 SP1-LTSS
  • xen >= 4.5.5_24-22.52.3
  • xen-doc-html >= 4.5.5_24-22.52.3
  • xen-kmp-default >= 4.5.5_24_k3.12.74_60.64.96-22.52.3
  • xen-libs >= 4.5.5_24-22.52.3
  • xen-libs-32bit >= 4.5.5_24-22.52.3
  • xen-tools >= 4.5.5_24-22.52.3
  • xen-tools-domU >= 4.5.5_24-22.52.3
Patchnames:
SUSE-SLE-SERVER-12-SP1-2018-1406
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-SLE-SAP-12-SP2-2018-1414
SUSE Linux Enterprise Server for SAP Applications 12 SP2-LTSS
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2018-1414
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • xen >= 4.9.2_08-3.35.2
  • xen-doc-html >= 4.9.2_08-3.35.2
  • xen-libs >= 4.9.2_08-3.35.2
  • xen-libs-32bit >= 4.9.2_08-3.35.2
  • xen-tools >= 4.9.2_08-3.35.2
  • xen-tools-domU >= 4.9.2_08-3.35.2
Patchnames:
SUSE-SLE-SERVER-12-SP3-2018-1388
SUSE Linux Enterprise Server for SAP Applications 12-LTSS
  • xen >= 4.4.4_34-22.71.2
  • xen-doc-html >= 4.4.4_34-22.71.2
  • xen-kmp-default >= 4.4.4_34_k3.12.61_52.136-22.71.2
  • xen-libs >= 4.4.4_34-22.71.2
  • xen-libs-32bit >= 4.4.4_34-22.71.2
  • xen-tools >= 4.4.4_34-22.71.2
  • xen-tools-domU >= 4.4.4_34-22.71.2
Patchnames:
SUSE-SLE-SERVER-12-2018-1389
SUSE Linux Enterprise Software Development Kit 11 SP4
  • xen >= 4.4.4_34-61.32.1
  • xen-devel >= 4.4.4_34-61.32.1
Patchnames:
sdksp4-xen-13698
SUSE Linux Enterprise Software Development Kit 12 SP3
  • xen >= 4.9.2_08-3.35.2
  • xen-devel >= 4.9.2_08-3.35.2
Patchnames:
SUSE-SLE-SDK-12-SP3-2018-1388
SUSE OpenStack Cloud 7
  • xen >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
Patchnames:
SUSE-OpenStack-Cloud-7-2018-1414
openSUSE Leap 15.0
  • xen >= 4.10.1_06-lp150.2.6.1
  • xen-debugsource >= 4.10.1_06-lp150.2.6.1
  • xen-devel >= 4.10.1_06-lp150.2.6.1
  • xen-doc-html >= 4.10.1_06-lp150.2.6.1
  • xen-libs >= 4.10.1_06-lp150.2.6.1
  • xen-libs-32bit >= 4.10.1_06-lp150.2.6.1
  • xen-libs-32bit-debuginfo >= 4.10.1_06-lp150.2.6.1
  • xen-libs-debuginfo >= 4.10.1_06-lp150.2.6.1
  • xen-tools >= 4.10.1_06-lp150.2.6.1
  • xen-tools-debuginfo >= 4.10.1_06-lp150.2.6.1
  • xen-tools-domU >= 4.10.1_06-lp150.2.6.1
  • xen-tools-domU-debuginfo >= 4.10.1_06-lp150.2.6.1
Patchnames:
openSUSE-2018-766
openSUSE Leap 42.3
  • xen >= 4.9.2_08-25.2
  • xen-debugsource >= 4.9.2_08-25.2
  • xen-devel >= 4.9.2_08-25.2
  • xen-doc-html >= 4.9.2_08-25.2
  • xen-libs >= 4.9.2_08-25.2
  • xen-libs-debuginfo >= 4.9.2_08-25.2
  • xen-tools >= 4.9.2_08-25.2
  • xen-tools-debuginfo >= 4.9.2_08-25.2
  • xen-tools-domU >= 4.9.2_08-25.2
  • xen-tools-domU-debuginfo >= 4.9.2_08-25.2
Patchnames:
openSUSE-2018-803

List of packages in QA

Product(s) Package(s)
SUSE Enterprise Storage 4
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Server 12 SP2-BCL
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Server 12 SP2-LTSS
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2-BCL
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE Linux Enterprise Server for SAP Applications 12 SP2-LTSS
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1
SUSE OpenStack Cloud 7
  • xen >= 4.7.6_02-43.36.1
  • xen-debugsource >= 4.7.6_02-43.36.1
  • xen-doc-html >= 4.7.6_02-43.36.1
  • xen-libs >= 4.7.6_02-43.36.1
  • xen-libs-32bit >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo >= 4.7.6_02-43.36.1
  • xen-libs-debuginfo-32bit >= 4.7.6_02-43.36.1
  • xen-tools >= 4.7.6_02-43.36.1
  • xen-tools-debuginfo >= 4.7.6_02-43.36.1
  • xen-tools-domU >= 4.7.6_02-43.36.1
  • xen-tools-domU-debuginfo >= 4.7.6_02-43.36.1


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
CaaS Platform 2.0 xen Released
SUSE Linux Enterprise Desktop 12 SP3 xen Released
SUSE Linux Enterprise Module for Basesystem 15 GA xen Released
SUSE Linux Enterprise Module for Server Applications 15 GA xen Released
SUSE Linux Enterprise SDK 11 SP4 xen Released
SUSE Linux Enterprise SDK 12 SP3 xen Released
SUSE Linux Enterprise Server 11 SP3 LTSS xen Released
SUSE Linux Enterprise Server 11 SP4 xen Released
SUSE Linux Enterprise Server 12 GA LTSS xen Released
SUSE Linux Enterprise Server 12 SP1 LTSS xen Released
SUSE Linux Enterprise Server 12 SP2 LTSS xen In progress
SUSE Linux Enterprise Server 12 SP3 xen Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 xen In progress