Upstream information

CVE-2020-27830 at MITRE

Description

A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.

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: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
  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:N/I:N/A:H CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Local Local
Access Complexity Low Low
Privileges Required Low None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1179656 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES15-SP2-CHOST-BYOS-Aliyun
Image SLES15-SP2-CHOST-BYOS-Azure
Image SLES15-SP2-CHOST-BYOS-EC2
Image SLES15-SP2-CHOST-BYOS-GCE
  • kernel-default >= 5.3.18-24.46.1
SUSE Linux Enterprise High Availability 15 SP2
  • cluster-md-kmp-default >= 5.3.18-24.46.1
  • dlm-kmp-default >= 5.3.18-24.46.1
  • gfs2-kmp-default >= 5.3.18-24.46.1
  • ocfs2-kmp-default >= 5.3.18-24.46.1
Patchnames:
SUSE-SLE-Product-HA-15-SP2-2021-117
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • kernel-default >= 5.3.18-24.46.1
  • kernel-default-base >= 5.3.18-24.46.1.9.19.1
  • kernel-default-devel >= 5.3.18-24.46.1
  • kernel-devel >= 5.3.18-24.46.1
  • kernel-macros >= 5.3.18-24.46.1
  • kernel-preempt >= 5.3.18-24.46.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP2-2021-117
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • kernel-64kb >= 5.3.18-57.3
  • kernel-64kb-devel >= 5.3.18-57.3
  • kernel-default >= 5.3.18-57.3
  • kernel-default-devel >= 5.3.18-57.3
  • kernel-devel >= 5.3.18-57.3
  • kernel-macros >= 5.3.18-57.3
  • kernel-preempt >= 5.3.18-57.3
  • kernel-zfcpdump >= 5.3.18-57.3
SUSE Linux Enterprise Module for Development Tools 15 SP2
  • kernel-docs >= 5.3.18-24.46.1
  • kernel-obs-build >= 5.3.18-24.46.1
  • kernel-preempt-devel >= 5.3.18-24.46.1
  • kernel-source >= 5.3.18-24.46.1
  • kernel-syms >= 5.3.18-24.46.1
Patchnames:
SUSE-SLE-Module-Development-Tools-15-SP2-2021-117
SUSE Linux Enterprise Module for Development Tools 15 SP3
  • kernel-docs >= 5.3.18-57.3
  • kernel-obs-build >= 5.3.18-57.3
  • kernel-preempt-devel >= 5.3.18-57.3
  • kernel-source >= 5.3.18-57.3
  • kernel-syms >= 5.3.18-57.1
SUSE Linux Enterprise Module for Legacy 15 SP2
  • reiserfs-kmp-default >= 5.3.18-24.46.1
Patchnames:
SUSE-SLE-Module-Legacy-15-SP2-2021-117
SUSE Linux Enterprise Module for Legacy 15 SP3
  • reiserfs-kmp-default >= 5.3.18-57.3
SUSE Linux Enterprise Module for Live Patching 15 SP2
  • kernel-default-livepatch >= 5.3.18-24.46.1
  • kernel-default-livepatch-devel >= 5.3.18-24.46.1
  • kernel-livepatch-5_3_18-24_46-default >= 1-5.3.1
Patchnames:
SUSE-SLE-Module-Live-Patching-15-SP2-2021-117
SUSE Linux Enterprise Module for Public Cloud 15 SP2
  • kernel-azure >= 5.3.18-18.32.1
  • kernel-azure-devel >= 5.3.18-18.32.1
  • kernel-devel-azure >= 5.3.18-18.32.1
  • kernel-source-azure >= 5.3.18-18.32.1
  • kernel-syms-azure >= 5.3.18-18.32.1
Patchnames:
SUSE-SLE-Module-Public-Cloud-15-SP2-2021-96
SUSE Linux Enterprise Module for Public Cloud 15 SP3
  • kernel-azure >= 5.3.18-36.1
  • kernel-azure-devel >= 5.3.18-36.1
  • kernel-devel-azure >= 5.3.18-36.1
  • kernel-source-azure >= 5.3.18-36.1
  • kernel-syms-azure >= 5.3.18-36.1
SUSE Linux Enterprise Module for Realtime packages 15 SP2
  • cluster-md-kmp-rt >= 5.3.18-22.1
  • dlm-kmp-rt >= 5.3.18-22.1
  • gfs2-kmp-rt >= 5.3.18-22.1
  • kernel-devel-rt >= 5.3.18-22.1
  • kernel-rt >= 5.3.18-22.1
  • kernel-rt-devel >= 5.3.18-22.1
  • kernel-rt_debug-devel >= 5.3.18-22.1
  • kernel-source-rt >= 5.3.18-22.1
  • kernel-syms-rt >= 5.3.18-22.1
  • ocfs2-kmp-rt >= 5.3.18-22.1
Patchnames:
SUSE-SLE-Module-RT-15-SP2-2021-108
SUSE Linux Enterprise Workstation Extension 15 SP2
  • kernel-default-extra >= 5.3.18-24.46.1
Patchnames:
SUSE-SLE-Product-WE-15-SP2-2021-117
openSUSE Leap 15.2
  • cluster-md-kmp-rt >= 5.3.18-lp152.3.5.1
  • cluster-md-kmp-rt_debug >= 5.3.18-lp152.3.5.1
  • dlm-kmp-rt >= 5.3.18-lp152.3.5.1
  • dlm-kmp-rt_debug >= 5.3.18-lp152.3.5.1
  • gfs2-kmp-rt >= 5.3.18-lp152.3.5.1
  • gfs2-kmp-rt_debug >= 5.3.18-lp152.3.5.1
  • kernel-debug >= 5.3.18-lp152.60.1
  • kernel-debug-devel >= 5.3.18-lp152.60.1
  • kernel-default >= 5.3.18-lp152.60.1
  • kernel-default-devel >= 5.3.18-lp152.60.1
  • kernel-devel >= 5.3.18-lp152.60.1
  • kernel-devel-rt >= 5.3.18-lp152.3.5.1
  • kernel-docs >= 5.3.18-lp152.60.1
  • kernel-docs-html >= 5.3.18-lp152.60.1
  • kernel-kvmsmall >= 5.3.18-lp152.60.1
  • kernel-kvmsmall-devel >= 5.3.18-lp152.60.1
  • kernel-macros >= 5.3.18-lp152.60.1
  • kernel-obs-build >= 5.3.18-lp152.60.1
  • kernel-obs-qa >= 5.3.18-lp152.60.1
  • kernel-preempt >= 5.3.18-lp152.60.1
  • kernel-preempt-devel >= 5.3.18-lp152.60.1
  • kernel-rt >= 5.3.18-lp152.3.5.1
  • kernel-rt-devel >= 5.3.18-lp152.3.5.1
  • kernel-rt-extra >= 5.3.18-lp152.3.5.1
  • kernel-rt_debug >= 5.3.18-lp152.3.5.1
  • kernel-rt_debug-devel >= 5.3.18-lp152.3.5.1
  • kernel-rt_debug-extra >= 5.3.18-lp152.3.5.1
  • kernel-source >= 5.3.18-lp152.60.1
  • kernel-source-rt >= 5.3.18-lp152.3.5.1
  • kernel-source-vanilla >= 5.3.18-lp152.60.1
  • kernel-syms >= 5.3.18-lp152.60.1
  • kernel-syms-rt >= 5.3.18-lp152.3.5.1
  • kselftests-kmp-rt >= 5.3.18-lp152.3.5.1
  • kselftests-kmp-rt_debug >= 5.3.18-lp152.3.5.1
  • ocfs2-kmp-rt >= 5.3.18-lp152.3.5.1
  • ocfs2-kmp-rt_debug >= 5.3.18-lp152.3.5.1
  • reiserfs-kmp-rt >= 5.3.18-lp152.3.5.1
  • reiserfs-kmp-rt_debug >= 5.3.18-lp152.3.5.1
Patchnames:
openSUSE-2021-242
openSUSE-2021-60


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
SUSE Enterprise Storage 5 kernel-default Not affected
SUSE Enterprise Storage 5 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 15 LTSS kernel-default Not affected
SUSE Linux Enterprise High Performance Computing 15 LTSS kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-default Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-default Released
SUSE Linux Enterprise Module for Basesystem 15 SP2 kernel-source Released
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-default Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP1 kernel-source Not affected
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-default Released
SUSE Linux Enterprise Module for Development Tools 15 SP2 kernel-source Released
SUSE Linux Enterprise Module for Public Cloud 15 SP2 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 Point of Service Image Server 12 SP2 kernel-default Not affected
SUSE Linux Enterprise Point of Service Image Server 12 SP2 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 12 SP2 ESPOS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP2 ESPOS kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP2 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 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS kernel-source 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 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP4 LTSS kernel-source 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 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 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 for SAP Applications 12 SP2 kernel-default 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 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 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 15 kernel-default Not affected
SUSE Linux Enterprise Server for SAP Applications 15 kernel-source Not affected
SUSE OpenStack Cloud 7 kernel-default Not affected
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 9 kernel-default Not affected
SUSE OpenStack Cloud 9 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-default Not affected
SUSE OpenStack Cloud Crowbar 8 kernel-source Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-default Not affected
SUSE OpenStack Cloud Crowbar 9 kernel-source Not affected
SUSE Real Time Module 15 SP2 kernel-source-rt Released