Upstream information

CVE-2015-2877 at MITRE

Description

** DISPUTED ** Kernel Samepage Merging (KSM) in the Linux kernel 2.6.32 through 4.x does not prevent use of a write-timing side channel, which allows guest OS users to defeat the ASLR protection mechanism on other guest OS instances via a Cross-VM ASL INtrospection (CAIN) attack. NOTE: the vendor states "Basically if you care about this attack vector, disable deduplication." Share-until-written approaches for memory conservation among mutually untrusting tenants are inherently detectable for information disclosure, and can be classified as potentially misunderstood behaviors rather than vulnerabilities.

SUSE information

Overall state of this security issue: Ignore

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
Vector AV:L/AC:L/Au:N/C:P/I:N/A:N
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
CVSS v3 Scores
  National Vulnerability Database
Base Score 3.3
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
CVSSv3 Version 3.1

Note from the SUSE Security Team

There is currently no code fix for this issue. A possible workaround is to disable memory de-duplication between VMs (by disabling the KSM feature in kvm).

SUSE Bugzilla entry: 941252 [RESOLVED / WONTFIX]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 kernel-default Unsupported
SUSE Enterprise Storage 7.1 kernel-source Unsupported
SUSE Enterprise Storage 7.1 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Analysis
SUSE Linux Enterprise Micro 5.1 kernel-default Analysis
SUSE Linux Enterprise Micro 5.1 kernel-rt Analysis
SUSE Linux Enterprise Micro 5.1 kernel-source-rt Analysis
SUSE Linux Enterprise Micro 5.2 kernel-default Analysis
SUSE Linux Enterprise Micro 5.2 kernel-rt Analysis
SUSE Linux Enterprise Micro 5.2 kernel-source-rt Analysis
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Analysis
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Analysis
SUSE Linux Enterprise Real Time 15 SP3 kernel-source-rt Analysis
SUSE Linux Enterprise Server 12 SP5 kernel-default Ignore
SUSE Linux Enterprise Server 12 SP5 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Analysis
SUSE Linux Enterprise Server 12-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 12-LTSS kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Analysis
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 15 kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 15 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-default Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Ignore
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Ignore
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP2-BCL kernel-default Ignore
SUSE Linux Enterprise Server 12 SP2-BCL kernel-source Ignore
SUSE Linux Enterprise Server 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Server 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Server 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Analysis
SUSE Linux Enterprise Server 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise Server 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise Server 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Analysis
SUSE Linux Enterprise Server 15-ESPOS kernel-default Ignore
SUSE Linux Enterprise Server 15-ESPOS kernel-source Ignore
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-default Unsupported
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-source Unsupported
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source-azure Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source-azure Analysis
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-default Analysis
HPE Helion OpenStack 8 kernel-source Analysis
HPE Helion OpenStack 8 kernel-source-azure Unsupported
SLES for SAP Applications 11 SP3 kernel-default Ignore
SLES for SAP Applications 11 SP3 kernel-source Ignore
SUSE CaaS Platform 4.0 kernel-default Analysis
SUSE CaaS Platform 4.0 kernel-source Analysis
SUSE CaaS Platform 4.0 kernel-source-azure Unsupported
SUSE Enterprise Storage 5 kernel-default Unsupported
SUSE Enterprise Storage 5 kernel-source Unsupported
SUSE Enterprise Storage 5 kernel-source-azure Unsupported
SUSE Enterprise Storage 6 kernel-default Analysis
SUSE Enterprise Storage 6 kernel-source Analysis
SUSE Enterprise Storage 6 kernel-source-azure Unsupported
SUSE Enterprise Storage 7 kernel-default Unsupported
SUSE Enterprise Storage 7 kernel-source Unsupported
SUSE Enterprise Storage 7 kernel-source-azure Analysis
SUSE Linux Enterprise Desktop 11 SP3 kernel-default Ignore
SUSE Linux Enterprise Desktop 11 SP3 kernel-source Ignore
SUSE Linux Enterprise Desktop 11 SP4 kernel-default Ignore
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP1 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP3 kernel-default Ignore
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Desktop 12 SP4 kernel-default Ignore
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Desktop 15 kernel-default Ignore
SUSE Linux Enterprise Desktop 15 kernel-source Ignore
SUSE Linux Enterprise Desktop 15 SP1 kernel-default Ignore
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Ignore
SUSE Linux Enterprise Desktop 15 SP2 kernel-default Unsupported
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Unsupported
SUSE Linux Enterprise Desktop 15 SP3 kernel-default Unsupported
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Unsupported
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-default Ignore
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Micro 5.0 kernel-default Ignore
SUSE Linux Enterprise Micro 5.0 kernel-rt Analysis
SUSE Linux Enterprise Module for Basesystem 15 kernel-default Ignore
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Ignore
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-default Ignore
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Ignore
SUSE Linux Enterprise Module for Development Tools 15 kernel-default Ignore
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Ignore
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-default Ignore
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Ignore
SUSE Linux Enterprise Module for Public Cloud 15 kernel-source-azure Analysis
SUSE Linux Enterprise Module for Public Cloud 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Module for Public Cloud 15 SP2 kernel-source-azure Analysis
SUSE Linux Enterprise Module for Public Cloud 15 SP3 kernel-source-azure Analysis
SUSE Linux Enterprise Point of Service 11 SP3 kernel-default Unsupported
SUSE Linux Enterprise Point of Service 11 SP3 kernel-source Unsupported
SUSE Linux Enterprise Point of Service Image Server 12 SP2 kernel-default Unsupported
SUSE Linux Enterprise Point of Service Image Server 12 SP2 kernel-source Unsupported
SUSE Linux Enterprise Real Time 12 SP4 kernel-source-rt Unsupported
SUSE Linux Enterprise Real Time 15 SP1 kernel-source-rt Unsupported
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Analysis
SUSE Linux Enterprise Real Time 15 SP2 kernel-source-rt Unsupported
SUSE Linux Enterprise Server 11 SP3 kernel-default Ignore
SUSE Linux Enterprise Server 11 SP3 kernel-source Ignore
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-default Ignore
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 11 SP3-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 11 SP4 kernel-source Ignore
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default Ignore
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Ignore
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP1 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP1-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 12 SP1-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP2 kernel-default Analysis
SUSE Linux Enterprise Server 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2-ESPOS kernel-default Unsupported
SUSE Linux Enterprise Server 12 SP2-ESPOS kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP3 kernel-default Ignore
SUSE Linux Enterprise Server 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP3 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-BCL kernel-default Ignore
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Ignore
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-default Unsupported
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4 kernel-default Ignore
SUSE Linux Enterprise Server 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Server 12 SP4 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-default Analysis
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Ignore
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 kernel-default Ignore
SUSE Linux Enterprise Server 15 kernel-source Ignore
SUSE Linux Enterprise Server 15 kernel-source-azure Analysis
SUSE Linux Enterprise Server 15 SP1 kernel-default Ignore
SUSE Linux Enterprise Server 15 SP1 kernel-source Ignore
SUSE Linux Enterprise Server 15 SP1 kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Ignore
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Analysis
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Analysis
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source-azure Unsupported
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Analysis
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Analysis
SUSE Linux Enterprise Server 15-LTSS kernel-default Ignore
SUSE Linux Enterprise Server 15-LTSS kernel-source Ignore
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 12 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP1 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source-azure Unsupported
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Ignore
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source-azure Unsupported
SUSE Manager Proxy 4.0 kernel-default Ignore
SUSE Manager Proxy 4.0 kernel-source Ignore
SUSE Manager Proxy 4.0 kernel-source-azure Unsupported
SUSE Manager Proxy 4.1 kernel-default Unsupported
SUSE Manager Proxy 4.1 kernel-source Unsupported
SUSE Manager Proxy 4.1 kernel-source-azure Analysis
SUSE Manager Proxy 4.2 kernel-default Unsupported
SUSE Manager Proxy 4.2 kernel-source Unsupported
SUSE Manager Proxy 4.2 kernel-source-azure Analysis
SUSE Manager Retail Branch Server 4.0 kernel-default Ignore
SUSE Manager Retail Branch Server 4.0 kernel-source Ignore
SUSE Manager Retail Branch Server 4.0 kernel-source-azure Unsupported
SUSE Manager Retail Branch Server 4.1 kernel-default Unsupported
SUSE Manager Retail Branch Server 4.1 kernel-source Unsupported
SUSE Manager Retail Branch Server 4.1 kernel-source-azure Analysis
SUSE Manager Retail Branch Server 4.2 kernel-default Unsupported
SUSE Manager Retail Branch Server 4.2 kernel-source Unsupported
SUSE Manager Retail Branch Server 4.2 kernel-source-azure Analysis
SUSE Manager Server 4.0 kernel-default Ignore
SUSE Manager Server 4.0 kernel-source Ignore
SUSE Manager Server 4.0 kernel-source-azure Unsupported
SUSE Manager Server 4.1 kernel-default Unsupported
SUSE Manager Server 4.1 kernel-source Unsupported
SUSE Manager Server 4.1 kernel-source-azure Analysis
SUSE Manager Server 4.2 kernel-default Unsupported
SUSE Manager Server 4.2 kernel-source Unsupported
SUSE Manager Server 4.2 kernel-source-azure Analysis
SUSE OpenStack Cloud 7 kernel-default Unsupported
SUSE OpenStack Cloud 7 kernel-source Unsupported
SUSE OpenStack Cloud 8 kernel-default Analysis
SUSE OpenStack Cloud 8 kernel-source Analysis
SUSE OpenStack Cloud 8 kernel-source-azure Unsupported
SUSE OpenStack Cloud 9 kernel-default Analysis
SUSE OpenStack Cloud 9 kernel-source Analysis
SUSE OpenStack Cloud 9 kernel-source-azure Unsupported
SUSE OpenStack Cloud Crowbar 8 kernel-default Analysis
SUSE OpenStack Cloud Crowbar 8 kernel-source Analysis
SUSE OpenStack Cloud Crowbar 8 kernel-source-azure Unsupported
SUSE OpenStack Cloud Crowbar 9 kernel-default Analysis
SUSE OpenStack Cloud Crowbar 9 kernel-source Analysis
SUSE OpenStack Cloud Crowbar 9 kernel-source-azure Unsupported
SUSE Real Time Module 15 SP1 kernel-source-rt Unsupported
SUSE Real Time Module 15 SP2 kernel-source-rt Unsupported
SUSE Real Time Module 15 SP3 kernel-source-rt Analysis


SUSE Timeline for this CVE

CVE page created: Mon Aug 10 19:28:25 2015
CVE page last modified: Thu Feb 22 21:16:53 2024