Upstream information

CVE-2021-31829 at MITRE

Description

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate 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 SUSE
Base Score 5.5 6.2
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Local Local
Attack Complexity Low Low
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact None None
Availability Impact None None
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1188561 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Liberty Linux 8
  • bpftool >= 4.18.0-348.el8
  • kernel >= 4.18.0-348.el8
  • kernel-abi-stablelists >= 4.18.0-348.el8
  • kernel-core >= 4.18.0-348.el8
  • kernel-cross-headers >= 4.18.0-348.el8
  • kernel-debug >= 4.18.0-348.el8
  • kernel-debug-core >= 4.18.0-348.el8
  • kernel-debug-devel >= 4.18.0-348.el8
  • kernel-debug-modules >= 4.18.0-348.el8
  • kernel-debug-modules-extra >= 4.18.0-348.el8
  • kernel-devel >= 4.18.0-348.el8
  • kernel-doc >= 4.18.0-348.el8
  • kernel-headers >= 4.18.0-348.el8
  • kernel-modules >= 4.18.0-348.el8
  • kernel-modules-extra >= 4.18.0-348.el8
  • kernel-tools >= 4.18.0-348.el8
  • kernel-tools-libs >= 4.18.0-348.el8
  • kernel-tools-libs-devel >= 4.18.0-348.el8
  • perf >= 4.18.0-348.el8
  • python3-perf >= 4.18.0-348.el8
 Patchnames:
RHSA-2021:4356

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Please note that this evaluation state might be work in progress, incomplete or outdated.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 Linux Enterprise High Performance Computing 12 SP5 kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source-azure Not affected
SUSE Linux Enterprise Micro 5.1 kernel-default Already fixed
SUSE Linux Enterprise Micro 5.2 kernel-default Already fixed
SUSE Linux Enterprise Real Time 12 SP5 kernel-source-rt Not affected
SUSE Linux Enterprise Server 12 SP5 kernel-default Not affected
SUSE Linux Enterprise Server 12 SP5 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5 kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5-LTSS kernel-source-azure Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source-azure Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2 kernel-source-azure Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE kernel-source Not affected
SUSE Linux Enterprise Server 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Server 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP2 kernel-source-azure Already fixed
SUSE Linux Enterprise Server 15 SP2-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3-LTSS kernel-source Already fixed
SUSE Linux Enterprise Server 15-ESPOS kernel-default Not affected
SUSE Linux Enterprise Server 15-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-default Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP2 kernel-source-azure Already fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP3 kernel-source Already fixed
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 kernel-default Not affected
HPE Helion OpenStack 8 kernel-source Not affected
HPE Helion OpenStack 8 kernel-source-azure Not affected
SUSE CaaS Platform 4.0 kernel-default Not affected
SUSE CaaS Platform 4.0 kernel-source Not affected
SUSE CaaS Platform Toolchain 3 kernel-source Not affected
SUSE Enterprise Storage 6 kernel-default Not affected
SUSE Enterprise Storage 6 kernel-source Not affected
SUSE Enterprise Storage 6 kernel-source-azure Not affected
SUSE Enterprise Storage 7 kernel-default Already fixed
SUSE Enterprise Storage 7 kernel-source Already fixed
SUSE Enterprise Storage 7 kernel-source-azure Already fixed
SUSE Enterprise Storage 7.1 kernel-source Already fixed
SUSE Linux Enterprise Desktop 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Desktop 15 SP2 kernel-default Already fixed
SUSE Linux Enterprise Desktop 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Desktop 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise High Performance Computing 15 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 kernel-source-azure Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 kernel-source-azure Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS kernel-source Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS kernel-source Not affected
SUSE Linux Enterprise Micro 5.0 kernel-default Not affected
SUSE Linux Enterprise Module for Basesystem 15 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Public Cloud 15 kernel-source-azure Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP1 kernel-source-azure Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP2 kernel-source-azure Already fixed
SUSE Linux Enterprise Point of Sale 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT kernel-source Not affected
SUSE Linux Enterprise Point of Service 11 SP3 kernel-default Not affected
SUSE Linux Enterprise Point of Service 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Real Time 15 SP2 kernel-source Already fixed
SUSE Linux Enterprise Real Time 15 SP2 kernel-source-rt Already fixed
SUSE Linux Enterprise Real Time 15 SP3 kernel-source Already fixed
SUSE Linux Enterprise Server 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2-BCL kernel-default Not affected
SUSE Linux Enterprise Server 12 SP2-BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-default Not affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-BCL kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4 kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS kernel-source-azure Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS kernel-source-azure Not affected
SUSE Linux Enterprise Server 15 kernel-source Not affected
SUSE Linux Enterprise Server 15 kernel-source-azure Not affected
SUSE Linux Enterprise Server 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Server 15 SP1 kernel-source-azure Not affected
SUSE Linux Enterprise Server 15 SP1-BCL kernel-source Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS kernel-source Not affected
SUSE Linux Enterprise Server 15 SP2-BCL kernel-source Already fixed
SUSE Linux Enterprise Server 15 SP3-BCL kernel-source Already fixed
SUSE Linux Enterprise Server 15-LTSS kernel-default Not affected
SUSE Linux Enterprise Server 15-LTSS kernel-source Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source-azure Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source-azure Not affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source-azure Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source-azure Not affected
SUSE Manager Proxy 4.0 kernel-default Not affected
SUSE Manager Proxy 4.0 kernel-source Not affected
SUSE Manager Proxy 4.0 kernel-source-azure Not affected
SUSE Manager Proxy 4.1 kernel-default Already fixed
SUSE Manager Proxy 4.1 kernel-source Already fixed
SUSE Manager Proxy 4.1 kernel-source-azure Already fixed
SUSE Manager Proxy 4.2 kernel-source Already fixed
SUSE Manager Retail Branch Server 4.0 kernel-default Not affected
SUSE Manager Retail Branch Server 4.0 kernel-source Not affected
SUSE Manager Retail Branch Server 4.0 kernel-source-azure Not affected
SUSE Manager Retail Branch Server 4.1 kernel-default Already fixed
SUSE Manager Retail Branch Server 4.1 kernel-source Already fixed
SUSE Manager Retail Branch Server 4.1 kernel-source-azure Already fixed
SUSE Manager Retail Branch Server 4.2 kernel-source Already fixed
SUSE Manager Server 4.0 kernel-default Not affected
SUSE Manager Server 4.0 kernel-source Not affected
SUSE Manager Server 4.0 kernel-source-azure Not affected
SUSE Manager Server 4.1 kernel-default Already fixed
SUSE Manager Server 4.1 kernel-source Already fixed
SUSE Manager Server 4.1 kernel-source-azure Already fixed
SUSE Manager Server 4.2 kernel-source Already fixed
SUSE OpenStack Cloud 7 kernel-source Not affected
SUSE OpenStack Cloud 8 kernel-default Not affected
SUSE OpenStack Cloud 8 kernel-source Not affected
SUSE OpenStack Cloud 8 kernel-source-azure Not affected
SUSE OpenStack Cloud 9 kernel-default Not affected
SUSE OpenStack Cloud 9 kernel-source Not affected
SUSE OpenStack Cloud 9 kernel-source-azure Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-default Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-source-azure Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-default Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-source-azure Not affected
SUSE Real Time Module 15 SP2 kernel-source-rt Already fixed
openSUSE Leap 15.3 kernel-source Already fixed
openSUSE Leap 15.3 kernel-source-azure Already fixed
Products at an unknown state of their lifecycle.
SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security kernel-source Not affected
SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security kernel-source-azure Not affected

SUSE Timeline for this CVE

CVE page created: Tue May 4 18:44:18 2021
CVE page last modified: Tue Oct 8 18:31:35 2024