Upstream information

CVE-2020-12657 at MITRE

Description

An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body.

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 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.8 2.9
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:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Access Vector Local Local
Access Complexity Low High
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High None
Integrity Impact High None
Availability Impact High Low
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1171205 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-EC2-CHOST-HVM-BYOS
  • kernel-default >= 4.12.14-150.52.1
Image SLES15-SP1-CHOST-BYOS-Ali
Image SLES15-SP1-CHOST-BYOS-Azure
Image SLES15-SP1-CHOST-BYOS-EC2
Image SLES15-SP1-CHOST-BYOS-GCE
Image SLES15-SP1-CHOST-BYOS-OpenStack
  • kernel-default >= 4.12.14-197.45.1
SUSE Linux Enterprise High Availability 12 SP4
  • cluster-md-kmp-default >= 4.12.14-95.54.1
  • dlm-kmp-default >= 4.12.14-95.54.1
  • gfs2-kmp-default >= 4.12.14-95.54.1
  • kernel-default >= 4.12.14-95.54.1
  • ocfs2-kmp-default >= 4.12.14-95.54.1
Patchnames:
SUSE-SLE-HA-12-SP4-2020-1605
SUSE Linux Enterprise High Availability 12 SP5
  • cluster-md-kmp-default >= 4.12.14-122.23.1
  • dlm-kmp-default >= 4.12.14-122.23.1
  • gfs2-kmp-default >= 4.12.14-122.23.1
  • kernel-default >= 4.12.14-122.23.1
  • ocfs2-kmp-default >= 4.12.14-122.23.1
Patchnames:
SUSE-SLE-HA-12-SP5-2020-1602
SUSE Linux Enterprise High Availability 15 SP1
  • cluster-md-kmp-default >= 4.12.14-197.45.1
  • dlm-kmp-default >= 4.12.14-197.45.1
  • gfs2-kmp-default >= 4.12.14-197.45.1
  • kernel-default >= 4.12.14-197.45.1
  • ocfs2-kmp-default >= 4.12.14-197.45.1
Patchnames:
SUSE-SLE-Product-HA-15-SP1-2020-1599
SUSE Linux Enterprise High Availability 15
  • cluster-md-kmp-default >= 4.12.14-150.52.1
  • dlm-kmp-default >= 4.12.14-150.52.1
  • gfs2-kmp-default >= 4.12.14-150.52.1
  • kernel-default >= 4.12.14-150.52.1
  • ocfs2-kmp-default >= 4.12.14-150.52.1
Patchnames:
SUSE-SLE-Product-HA-15-2020-1663
SUSE Linux Enterprise High Performance Computing 15-ESPOS
SUSE Linux Enterprise High Performance Computing 15-LTSS
  • kernel-default >= 4.12.14-150.52.1
  • kernel-default-base >= 4.12.14-150.52.1
  • kernel-default-devel >= 4.12.14-150.52.1
  • kernel-devel >= 4.12.14-150.52.1
  • kernel-docs >= 4.12.14-150.52.1
  • kernel-macros >= 4.12.14-150.52.1
  • kernel-obs-build >= 4.12.14-150.52.1
  • kernel-source >= 4.12.14-150.52.1
  • kernel-syms >= 4.12.14-150.52.1
  • kernel-vanilla >= 4.12.14-150.52.1
  • kernel-vanilla-base >= 4.12.14-150.52.1
Patchnames:
SUSE-SLE-Product-HPC-15-2020-1663
SUSE Linux Enterprise Live Patching 12 SP4
  • kernel-default >= 4.12.14-95.54.1
  • kernel-default-kgraft >= 4.12.14-95.54.1
  • kernel-default-kgraft-devel >= 4.12.14-95.54.1
  • kgraft-patch-4_12_14-95_54-default >= 1-6.3.1
  • kgraft-patch-SLE12-SP4_Update_14 >= 1-6.3.1
Patchnames:
SUSE-SLE-Live-Patching-12-SP4-2020-1605
SUSE Linux Enterprise Live Patching 12 SP5
  • kernel-default >= 4.12.14-122.23.1
  • kernel-default-kgraft >= 4.12.14-122.23.1
  • kernel-default-kgraft-devel >= 4.12.14-122.23.1
  • kgraft-patch-4_12_14-122_23-default >= 1-8.3.1
  • kgraft-patch-SLE12-SP5_Update_5 >= 1-8.3.1
Patchnames:
SUSE-SLE-Live-Patching-12-SP5-2020-1602
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • kernel-default >= 4.12.14-197.45.1
  • kernel-default-base >= 4.12.14-197.45.1
  • kernel-default-devel >= 4.12.14-197.45.1
  • kernel-default-man >= 4.12.14-197.45.1
  • kernel-devel >= 4.12.14-197.45.1
  • kernel-macros >= 4.12.14-197.45.1
  • kernel-source >= 4.12.14-197.45.1
  • kernel-zfcpdump >= 4.12.14-197.45.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2020-1599
SUSE Linux Enterprise Module for Development Tools 15 SP1
  • kernel-docs >= 4.12.14-197.45.1
  • kernel-obs-build >= 4.12.14-197.45.1
  • kernel-source >= 4.12.14-197.45.1
  • kernel-syms >= 4.12.14-197.45.1
Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP1-2020-1599
SUSE Linux Enterprise Module for Legacy Software 15 SP1
  • kernel-default >= 4.12.14-197.45.1
  • reiserfs-kmp-default >= 4.12.14-197.45.1
Patchnames:
SUSE-SLE-Module-Legacy-15-SP1-2020-1599
SUSE Linux Enterprise Module for Live Patching 15 SP1
  • kernel-default >= 4.12.14-197.45.1
  • kernel-default-livepatch >= 4.12.14-197.45.1
  • kernel-default-livepatch-devel >= 4.12.14-197.45.1
  • kernel-livepatch-4_12_14-197_45-default >= 1-3.5.1
  • kernel-livepatch-SLE15-SP1_Update_12 >= 1-3.5.1
Patchnames:
SUSE-SLE-Module-Live-Patching-15-SP1-2020-1599
SUSE Linux Enterprise Module for Live Patching 15
  • kernel-default >= 4.12.14-150.52.1
  • kernel-default-livepatch >= 4.12.14-150.52.1
  • kernel-livepatch-4_12_14-150_52-default >= 1-1.5.1
  • kernel-livepatch-SLE15_Update_18 >= 1-1.5.1
Patchnames:
SUSE-SLE-Module-Live-Patching-15-2020-1663
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • cluster-md-kmp-rt_debug >= 4.12.14-14.28.1
  • dlm-kmp-rt_debug >= 4.12.14-14.28.1
  • gfs2-kmp-rt_debug >= 4.12.14-14.28.1
  • kernel-debug >= 4.12.14-197.45.1
  • kernel-debug-base >= 4.12.14-197.45.1
  • kernel-debug-devel >= 4.12.14-197.45.1
  • kernel-debug-livepatch-devel >= 4.12.14-197.45.1
  • kernel-default >= 4.12.14-197.45.1
  • kernel-default-livepatch >= 4.12.14-197.45.1
  • kernel-docs >= 4.12.14-197.45.1
  • kernel-docs-html >= 4.12.14-197.45.1
  • kernel-kvmsmall >= 4.12.14-197.45.1
  • kernel-kvmsmall-base >= 4.12.14-197.45.1
  • kernel-kvmsmall-devel >= 4.12.14-197.45.1
  • kernel-kvmsmall-livepatch-devel >= 4.12.14-197.45.1
  • kernel-obs-qa >= 4.12.14-197.45.1
  • kernel-rt >= 4.12.14-14.28.1
  • kernel-rt-extra >= 4.12.14-14.28.1
  • kernel-rt-livepatch-devel >= 4.12.14-14.28.1
  • kernel-rt_debug >= 4.12.14-14.28.1
  • kernel-rt_debug-base >= 4.12.14-14.28.1
  • kernel-rt_debug-extra >= 4.12.14-14.28.1
  • kernel-rt_debug-livepatch-devel >= 4.12.14-14.28.1
  • kernel-source >= 4.12.14-197.45.1
  • kernel-source-vanilla >= 4.12.14-197.45.1
  • kernel-vanilla >= 4.12.14-197.45.1
  • kernel-vanilla-base >= 4.12.14-197.45.1
  • kernel-vanilla-devel >= 4.12.14-197.45.1
  • kernel-vanilla-livepatch-devel >= 4.12.14-197.45.1
  • kernel-zfcpdump >= 4.12.14-197.45.1
  • kernel-zfcpdump-man >= 4.12.14-197.45.1
  • kselftests-kmp-default >= 4.12.14-197.45.1
  • kselftests-kmp-rt >= 4.12.14-14.28.1
  • kselftests-kmp-rt_debug >= 4.12.14-14.28.1
  • ocfs2-kmp-rt_debug >= 4.12.14-14.28.1
  • reiserfs-kmp-rt >= 4.12.14-14.28.1
  • reiserfs-kmp-rt_debug >= 4.12.14-14.28.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-1599
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2020-2487
SUSE Linux Enterprise Module for Public Cloud 15 SP1
  • kernel-azure >= 4.12.14-8.33.1
  • kernel-azure-base >= 4.12.14-8.33.1
  • kernel-azure-devel >= 4.12.14-8.33.1
  • kernel-devel-azure >= 4.12.14-8.33.1
  • kernel-source-azure >= 4.12.14-8.33.1
  • kernel-syms-azure >= 4.12.14-8.33.1
Patchnames:
SUSE-SLE-Module-Public-Cloud-15-SP1-2020-1604
SUSE Linux Enterprise Module for Realtime packages 15 SP1
  • cluster-md-kmp-rt >= 4.12.14-14.28.1
  • dlm-kmp-rt >= 4.12.14-14.28.1
  • gfs2-kmp-rt >= 4.12.14-14.28.1
  • kernel-devel-rt >= 4.12.14-14.28.1
  • kernel-rt >= 4.12.14-14.28.1
  • kernel-rt-base >= 4.12.14-14.28.1
  • kernel-rt-devel >= 4.12.14-14.28.1
  • kernel-rt_debug >= 4.12.14-14.28.1
  • kernel-rt_debug-devel >= 4.12.14-14.28.1
  • kernel-source-rt >= 4.12.14-14.28.1
  • kernel-syms-rt >= 4.12.14-14.28.1
  • ocfs2-kmp-rt >= 4.12.14-14.28.1
Patchnames:
SUSE-SLE-Module-RT-15-SP1-2020-2487
SUSE Linux Enterprise Real Time Extension 12 SP4
  • cluster-md-kmp-rt >= 4.12.14-8.23.1
  • dlm-kmp-rt >= 4.12.14-8.23.1
  • gfs2-kmp-rt >= 4.12.14-8.23.1
  • kernel-devel-rt >= 4.12.14-8.23.1
  • kernel-rt >= 4.12.14-8.23.1
  • kernel-rt-base >= 4.12.14-8.23.1
  • kernel-rt-devel >= 4.12.14-8.23.1
  • kernel-rt_debug >= 4.12.14-8.23.1
  • kernel-rt_debug-devel >= 4.12.14-8.23.1
  • kernel-source-rt >= 4.12.14-8.23.1
  • kernel-syms-rt >= 4.12.14-8.23.1
  • ocfs2-kmp-rt >= 4.12.14-8.23.1
Patchnames:
SUSE-SLE-RT-12-SP4-2020-2156
SUSE Linux Enterprise Real Time Extension 12 SP5
  • cluster-md-kmp-rt >= 4.12.14-10.13.1
  • dlm-kmp-rt >= 4.12.14-10.13.1
  • gfs2-kmp-rt >= 4.12.14-10.13.1
  • kernel-devel-rt >= 4.12.14-10.13.1
  • kernel-rt >= 4.12.14-10.13.1
  • kernel-rt-base >= 4.12.14-10.13.1
  • kernel-rt-devel >= 4.12.14-10.13.1
  • kernel-rt_debug >= 4.12.14-10.13.1
  • kernel-rt_debug-devel >= 4.12.14-10.13.1
  • kernel-source-rt >= 4.12.14-10.13.1
  • kernel-syms-rt >= 4.12.14-10.13.1
  • ocfs2-kmp-rt >= 4.12.14-10.13.1
Patchnames:
SUSE-SLE-RT-12-SP5-2020-2478
SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • kernel-azure >= 4.12.14-6.43.1
  • kernel-azure-base >= 4.12.14-6.43.1
  • kernel-azure-devel >= 4.12.14-6.43.1
  • kernel-default >= 4.12.14-95.54.1
  • kernel-default-base >= 4.12.14-95.54.1
  • kernel-default-devel >= 4.12.14-95.54.1
  • kernel-default-man >= 4.12.14-95.54.1
  • kernel-devel >= 4.12.14-95.54.1
  • kernel-devel-azure >= 4.12.14-6.43.1
  • kernel-macros >= 4.12.14-95.54.1
  • kernel-source >= 4.12.14-95.54.1
  • kernel-source-azure >= 4.12.14-6.43.1
  • kernel-syms >= 4.12.14-95.54.1
  • kernel-syms-azure >= 4.12.14-6.43.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2020-1603
SUSE-SLE-SERVER-12-SP4-2020-1605
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • kernel-azure >= 4.12.14-16.16.1
  • kernel-azure-base >= 4.12.14-16.16.1
  • kernel-azure-devel >= 4.12.14-16.16.1
  • kernel-default >= 4.12.14-122.23.1
  • kernel-default-base >= 4.12.14-122.23.1
  • kernel-default-devel >= 4.12.14-122.23.1
  • kernel-default-man >= 4.12.14-122.23.1
  • kernel-devel >= 4.12.14-122.23.1
  • kernel-devel-azure >= 4.12.14-16.16.1
  • kernel-macros >= 4.12.14-122.23.1
  • kernel-source >= 4.12.14-122.23.1
  • kernel-source-azure >= 4.12.14-16.16.1
  • kernel-syms >= 4.12.14-122.23.1
  • kernel-syms-azure >= 4.12.14-16.16.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2020-1587
SUSE-SLE-SERVER-12-SP5-2020-1602
SUSE Linux Enterprise Server 15-LTSS
  • kernel-default >= 4.12.14-150.52.1
  • kernel-default-base >= 4.12.14-150.52.1
  • kernel-default-devel >= 4.12.14-150.52.1
  • kernel-default-man >= 4.12.14-150.52.1
  • kernel-devel >= 4.12.14-150.52.1
  • kernel-docs >= 4.12.14-150.52.1
  • kernel-macros >= 4.12.14-150.52.1
  • kernel-obs-build >= 4.12.14-150.52.1
  • kernel-source >= 4.12.14-150.52.1
  • kernel-syms >= 4.12.14-150.52.1
  • kernel-vanilla >= 4.12.14-150.52.1
  • kernel-vanilla-base >= 4.12.14-150.52.1
  • kernel-zfcpdump >= 4.12.14-150.52.1
  • reiserfs-kmp-default >= 4.12.14-150.52.1
Patchnames:
SUSE-SLE-Product-SLES-15-2020-1663
SUSE Linux Enterprise Server for SAP Applications 15
  • kernel-default >= 4.12.14-150.52.1
  • kernel-default-base >= 4.12.14-150.52.1
  • kernel-default-devel >= 4.12.14-150.52.1
  • kernel-devel >= 4.12.14-150.52.1
  • kernel-docs >= 4.12.14-150.52.1
  • kernel-macros >= 4.12.14-150.52.1
  • kernel-obs-build >= 4.12.14-150.52.1
  • kernel-source >= 4.12.14-150.52.1
  • kernel-syms >= 4.12.14-150.52.1
  • kernel-vanilla >= 4.12.14-150.52.1
  • kernel-vanilla-base >= 4.12.14-150.52.1
  • reiserfs-kmp-default >= 4.12.14-150.52.1
Patchnames:
SUSE-SLE-Product-SLES_SAP-15-2020-1663
SUSE Linux Enterprise Software Development Kit 12 SP4
  • kernel-docs >= 4.12.14-95.54.1
  • kernel-obs-build >= 4.12.14-95.54.1
Patchnames:
SUSE-SLE-SDK-12-SP4-2020-1605
SUSE Linux Enterprise Software Development Kit 12 SP5
  • kernel-docs >= 4.12.14-122.23.1
  • kernel-obs-build >= 4.12.14-122.23.1
Patchnames:
SUSE-SLE-SDK-12-SP5-2020-1602
SUSE Linux Enterprise Workstation Extension 12 SP4
  • kernel-default >= 4.12.14-95.54.1
  • kernel-default-extra >= 4.12.14-95.54.1
Patchnames:
SUSE-SLE-WE-12-SP4-2020-1605
SUSE Linux Enterprise Workstation Extension 12 SP5
  • kernel-default >= 4.12.14-122.23.1
  • kernel-default-extra >= 4.12.14-122.23.1
Patchnames:
SUSE-SLE-WE-12-SP5-2020-1602
SUSE Linux Enterprise Workstation Extension 15 SP1
  • kernel-default >= 4.12.14-197.45.1
  • kernel-default-extra >= 4.12.14-197.45.1
Patchnames:
SUSE-SLE-Product-WE-15-SP1-2020-1599
openSUSE Leap 15.1
  • kernel-debug >= 4.12.14-lp151.28.52.1
  • kernel-debug-base >= 4.12.14-lp151.28.52.1
  • kernel-debug-base-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-debug-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-debug-debugsource >= 4.12.14-lp151.28.52.1
  • kernel-debug-devel >= 4.12.14-lp151.28.52.1
  • kernel-debug-devel-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-default >= 4.12.14-lp151.28.52.1
  • kernel-default-base >= 4.12.14-lp151.28.52.1
  • kernel-default-base-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-default-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-default-debugsource >= 4.12.14-lp151.28.52.1
  • kernel-default-devel >= 4.12.14-lp151.28.52.1
  • kernel-default-devel-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-devel >= 4.12.14-lp151.28.52.1
  • kernel-docs >= 4.12.14-lp151.28.52.2
  • kernel-docs-html >= 4.12.14-lp151.28.52.2
  • kernel-kvmsmall >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-base >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-base-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-debugsource >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-devel >= 4.12.14-lp151.28.52.1
  • kernel-kvmsmall-devel-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-macros >= 4.12.14-lp151.28.52.1
  • kernel-obs-build >= 4.12.14-lp151.28.52.3
  • kernel-obs-build-debugsource >= 4.12.14-lp151.28.52.3
  • kernel-obs-qa >= 4.12.14-lp151.28.52.3
  • kernel-source >= 4.12.14-lp151.28.52.1
  • kernel-source-vanilla >= 4.12.14-lp151.28.52.1
  • kernel-syms >= 4.12.14-lp151.28.52.1
  • kernel-vanilla >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-base >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-base-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-debuginfo >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-debugsource >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-devel >= 4.12.14-lp151.28.52.1
  • kernel-vanilla-devel-debuginfo >= 4.12.14-lp151.28.52.1
Patchnames:
openSUSE-2020-801


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
SUSE Linux Enterprise 15-SP1 Module for Basesystem kernel-source Released
SUSE Linux Enterprise 15-SP1 Module for Development Tools kernel-source Released
SUSE Linux Enterprise 15-SP2 Module for Basesystem kernel-source Already fixed
SUSE Linux Enterprise 15-SP2 Module for Development Tools kernel-source Already fixed
SUSE Linux Enterprise High Availability Extension 12 SP4 kernel-default Released
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-source Released
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Released
SUSE Linux Enterprise High Performance Computing 15 LTSS kernel-source Released
SUSE Linux Enterprise Live Patching kernel-default Released
SUSE Linux Enterprise Live Patching kgraft-patch-SLE12-SP4_Update_14 Released
SUSE Linux Enterprise Server 11 SP1 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 kernel-source Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 BCL kernel-source Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP4 kernel-source Released
SUSE Linux Enterprise Server 12 SP4 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP5 kernel-source Released
SUSE Linux Enterprise Server 15 LTSS kernel-source Released
SUSE Linux Enterprise Server ESPOS 15 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-default Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Released
SUSE Real Time Module kernel-rt Released
SUSE Real Time Module kernel-rt_debug Released
SUSE Real Time Module kernel-source-rt Released
SUSE Real Time Module kernel-syms-rt Released