Upstream information

CVE-2021-3490 at MITRE

Description

The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") (5.7-rc1) and the XOR variant was introduced by 2921c90d4718 ("bpf:Fix a verifier failure with xor") ( 5.10-rc1).

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important 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 SUSE
Base Score 7.8 8.4
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entries: 1185641 [RESOLVED / FIXED], 1185796 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-SP3-CHOST-BYOS-Aliyun
Image SLES15-SP3-CHOST-BYOS-Azure
Image SLES15-SP3-CHOST-BYOS-EC2
Image SLES15-SP3-CHOST-BYOS-GCE
  • kernel-default >= 5.3.18-59.5.2
SUSE Linux Enterprise High Availability 15 SP3
  • cluster-md-kmp-default >= 5.3.18-59.5.2
  • dlm-kmp-default >= 5.3.18-59.5.2
  • gfs2-kmp-default >= 5.3.18-59.5.2
  • ocfs2-kmp-default >= 5.3.18-59.5.2
 Patchnames:
SUSE-SLE-Product-HA-15-SP3-2021-1977
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • kernel-64kb >= 5.3.18-59.5.2
  • kernel-64kb-devel >= 5.3.18-59.5.2
  • kernel-default >= 5.3.18-59.5.2
  • kernel-default-base >= 5.3.18-59.5.2.18.2.2
  • kernel-default-devel >= 5.3.18-59.5.2
  • kernel-devel >= 5.3.18-59.5.2
  • kernel-macros >= 5.3.18-59.5.2
  • kernel-preempt >= 5.3.18-59.5.2
  • kernel-zfcpdump >= 5.3.18-59.5.2
 Patchnames:
SUSE-SLE-Module-Basesystem-15-SP3-2021-1977
SUSE Linux Enterprise Module for Development Tools 15 SP3
  • kernel-docs >= 5.3.18-59.5.2
  • kernel-obs-build >= 5.3.18-59.5.1
  • kernel-preempt-devel >= 5.3.18-59.5.2
  • kernel-source >= 5.3.18-59.5.2
  • kernel-syms >= 5.3.18-59.5.1
 Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP3-2021-1977
SUSE Linux Enterprise Module for Legacy 15 SP3
  • reiserfs-kmp-default >= 5.3.18-59.5.2
 Patchnames:
SUSE-SLE-Module-Legacy-15-SP3-2021-1977
SUSE Linux Enterprise Module for Live Patching 15 SP3
  • kernel-default-livepatch >= 5.3.18-59.5.2
  • kernel-default-livepatch-devel >= 5.3.18-59.5.2
  • kernel-livepatch-5_3_18-57-default >= 2-3.1
  • kernel-livepatch-5_3_18-59_5-default >= 1-7.5.1
 Patchnames:
SUSE-SLE-Module-Live-Patching-15-SP3-2021-1977
SUSE-SLE-Module-Live-Patching-15-SP3-2021-2198
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3
  • cluster-md-kmp-64kb >= 5.3.18-59.5.2
  • cluster-md-kmp-azure >= 5.3.18-38.3.1
  • cluster-md-kmp-preempt >= 5.3.18-59.5.2
  • dlm-kmp-64kb >= 5.3.18-59.5.2
  • dlm-kmp-azure >= 5.3.18-38.3.1
  • dlm-kmp-preempt >= 5.3.18-59.5.2
  • gfs2-kmp-64kb >= 5.3.18-59.5.2
  • gfs2-kmp-azure >= 5.3.18-38.3.1
  • gfs2-kmp-preempt >= 5.3.18-59.5.2
  • kernel-64kb-extra >= 5.3.18-59.5.2
  • kernel-64kb-livepatch-devel >= 5.3.18-59.5.2
  • kernel-64kb-optional >= 5.3.18-59.5.2
  • kernel-azure-extra >= 5.3.18-38.3.1
  • kernel-azure-livepatch-devel >= 5.3.18-38.3.1
  • kernel-azure-optional >= 5.3.18-38.3.1
  • kernel-debug >= 5.3.18-59.5.2
  • kernel-debug-devel >= 5.3.18-59.5.2
  • kernel-debug-livepatch-devel >= 5.3.18-59.5.2
  • kernel-default-base-rebuild >= 5.3.18-59.5.2.18.2.2
  • kernel-default-livepatch >= 5.3.18-59.5.2
  • kernel-default-optional >= 5.3.18-59.5.2
  • kernel-docs-html >= 5.3.18-59.5.2
  • kernel-kvmsmall >= 5.3.18-59.5.2
  • kernel-kvmsmall-devel >= 5.3.18-59.5.2
  • kernel-kvmsmall-livepatch-devel >= 5.3.18-59.5.2
  • kernel-obs-qa >= 5.3.18-59.5.1
  • kernel-preempt-livepatch-devel >= 5.3.18-59.5.2
  • kernel-preempt-optional >= 5.3.18-59.5.2
  • kernel-source-vanilla >= 5.3.18-59.5.2
  • kselftests-kmp-64kb >= 5.3.18-59.5.2
  • kselftests-kmp-azure >= 5.3.18-38.3.1
  • kselftests-kmp-default >= 5.3.18-59.5.2
  • kselftests-kmp-preempt >= 5.3.18-59.5.2
  • ocfs2-kmp-64kb >= 5.3.18-59.5.2
  • ocfs2-kmp-azure >= 5.3.18-38.3.1
  • ocfs2-kmp-preempt >= 5.3.18-59.5.2
  • reiserfs-kmp-64kb >= 5.3.18-59.5.2
  • reiserfs-kmp-azure >= 5.3.18-38.3.1
  • reiserfs-kmp-preempt >= 5.3.18-59.5.2
 Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP3-2021-1975
SUSE-SLE-Module-Development-Tools-OBS-15-SP3-2021-1977
SUSE Linux Enterprise Module for Public Cloud 15 SP3
  • kernel-azure >= 5.3.18-38.3.1
  • kernel-azure-devel >= 5.3.18-38.3.1
  • kernel-devel-azure >= 5.3.18-38.3.1
  • kernel-source-azure >= 5.3.18-38.3.1
  • kernel-syms-azure >= 5.3.18-38.3.1
 Patchnames:
SUSE-SLE-Module-Public-Cloud-15-SP3-2021-1975
SUSE Linux Enterprise Workstation Extension 15 SP3
  • kernel-default-extra >= 5.3.18-59.5.2
  • kernel-preempt-extra >= 5.3.18-59.5.2
 Patchnames:
SUSE-SLE-Product-WE-15-SP3-2021-1977
openSUSE Leap 15.3
  • cluster-md-kmp-64kb >= 5.3.18-59.5.2
  • cluster-md-kmp-azure >= 5.3.18-38.3.1
  • cluster-md-kmp-default >= 5.3.18-59.5.2
  • cluster-md-kmp-preempt >= 5.3.18-59.5.2
  • dlm-kmp-64kb >= 5.3.18-59.5.2
  • dlm-kmp-azure >= 5.3.18-38.3.1
  • dlm-kmp-default >= 5.3.18-59.5.2
  • dlm-kmp-preempt >= 5.3.18-59.5.2
  • gfs2-kmp-64kb >= 5.3.18-59.5.2
  • gfs2-kmp-azure >= 5.3.18-38.3.1
  • gfs2-kmp-default >= 5.3.18-59.5.2
  • gfs2-kmp-preempt >= 5.3.18-59.5.2
  • kernel-64kb >= 5.3.18-59.5.2
  • kernel-64kb-devel >= 5.3.18-59.5.2
  • kernel-64kb-extra >= 5.3.18-59.5.2
  • kernel-64kb-livepatch-devel >= 5.3.18-59.5.2
  • kernel-64kb-optional >= 5.3.18-59.5.2
  • kernel-azure >= 5.3.18-38.3.1
  • kernel-azure-devel >= 5.3.18-38.3.1
  • kernel-azure-extra >= 5.3.18-38.3.1
  • kernel-azure-livepatch-devel >= 5.3.18-38.3.1
  • kernel-azure-optional >= 5.3.18-38.3.1
  • kernel-debug >= 5.3.18-59.5.2
  • kernel-debug-devel >= 5.3.18-59.5.2
  • kernel-debug-livepatch-devel >= 5.3.18-59.5.2
  • kernel-default >= 5.3.18-59.5.2
  • kernel-default-base >= 5.3.18-59.5.2.18.2.2
  • kernel-default-base-rebuild >= 5.3.18-59.5.2.18.2.2
  • kernel-default-devel >= 5.3.18-59.5.2
  • kernel-default-extra >= 5.3.18-59.5.2
  • kernel-default-livepatch >= 5.3.18-59.5.2
  • kernel-default-livepatch-devel >= 5.3.18-59.5.2
  • kernel-default-optional >= 5.3.18-59.5.2
  • kernel-devel >= 5.3.18-59.5.2
  • kernel-devel-azure >= 5.3.18-38.3.1
  • kernel-docs >= 5.3.18-59.5.2
  • kernel-docs-html >= 5.3.18-59.5.2
  • kernel-kvmsmall >= 5.3.18-59.5.2
  • kernel-kvmsmall-devel >= 5.3.18-59.5.2
  • kernel-kvmsmall-livepatch-devel >= 5.3.18-59.5.2
  • kernel-macros >= 5.3.18-59.5.2
  • kernel-obs-build >= 5.3.18-59.5.1
  • kernel-obs-qa >= 5.3.18-59.5.1
  • kernel-preempt >= 5.3.18-59.5.2
  • kernel-preempt-devel >= 5.3.18-59.5.2
  • kernel-preempt-extra >= 5.3.18-59.5.2
  • kernel-preempt-livepatch-devel >= 5.3.18-59.5.2
  • kernel-preempt-optional >= 5.3.18-59.5.2
  • kernel-source >= 5.3.18-59.5.2
  • kernel-source-azure >= 5.3.18-38.3.1
  • kernel-source-vanilla >= 5.3.18-59.5.2
  • kernel-syms >= 5.3.18-59.5.1
  • kernel-syms-azure >= 5.3.18-38.3.1
  • kernel-zfcpdump >= 5.3.18-59.5.2
  • kselftests-kmp-64kb >= 5.3.18-59.5.2
  • kselftests-kmp-azure >= 5.3.18-38.3.1
  • kselftests-kmp-default >= 5.3.18-59.5.2
  • kselftests-kmp-preempt >= 5.3.18-59.5.2
  • ocfs2-kmp-64kb >= 5.3.18-59.5.2
  • ocfs2-kmp-azure >= 5.3.18-38.3.1
  • ocfs2-kmp-default >= 5.3.18-59.5.2
  • ocfs2-kmp-preempt >= 5.3.18-59.5.2
  • reiserfs-kmp-64kb >= 5.3.18-59.5.2
  • reiserfs-kmp-azure >= 5.3.18-38.3.1
  • reiserfs-kmp-default >= 5.3.18-59.5.2
  • reiserfs-kmp-preempt >= 5.3.18-59.5.2
 Patchnames:
openSUSE-SLE-15.3-2021-1975
openSUSE-SLE-15.3-2021-1977
openSUSE Tumbleweed
  • kernel-devel >= 5.14.6-1.4
  • kernel-macros >= 5.14.6-1.4
  • kernel-source >= 5.14.6-1.4
  • kernel-source-vanilla >= 5.14.6-1.4
 Patchnames:
openSUSE Tumbleweed GA kernel-devel-5.14.6-1.4

First public cloud image revisions this CVE is fixed in:

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
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 Enterprise Storage 6 kernel-default Not affected
SUSE Enterprise Storage 6 kernel-source Not affected
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 High Performance Computing 15 LTSS kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS 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 Live Patching 15 SP3 kernel-livepatch-SLE15-SP3_Update_0 In progress
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-default Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-default Released
SUSE Linux Enterprise Module for Basesystem 15 SP3 kernel-source Released
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-default Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-default Released
SUSE Linux Enterprise Module for Development Tools 15 SP3 kernel-source Released
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 Not affected
SUSE Linux Enterprise Module for Public Cloud 15 SP3 kernel-source-azure Released
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 12 SP5 kernel-source-rt 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 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 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 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 15 ESPOS kernel-default Not affected
SUSE Linux Enterprise Server 15 ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 15 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 15 LTSS 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 BCL 12 SP2 kernel-default Not affected
SUSE Linux Enterprise Server BCL 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server BCL 12 SP3 kernel-default Not affected
SUSE Linux Enterprise Server BCL 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server BCL 12 SP3 kernel-source-azure 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 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 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
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 SP1 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kernel-source Not affected
SUSE Manager Proxy 4.0 kernel-default Not affected
SUSE Manager Proxy 4.0 kernel-source Not affected
SUSE Manager Retail Branch Server 4.0 kernel-default Not affected
SUSE Manager Retail Branch Server 4.0 kernel-source Not affected
SUSE Manager Server 4.0 kernel-default Not affected
SUSE Manager Server 4.0 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 Not affected