Upstream information

CVE-2018-1000200 at MITRE

Description

The Linux Kernel versions 4.14, 4.15, and 4.16 has a null pointer dereference which can result in an out of memory (OOM) killing of large mlocked processes. The issue arises from an oom killed process's final thread calling exit_mmap(), which calls munlock_vma_pages_all() for mlocked vmas.This can happen synchronously with the oom reaper's unmap_page_range() since the vma's VM_LOCKED bit is cleared before munlocking (to determine if any other vmas share the memory and are mlocked).

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 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
SUSE Bugzilla entry: 1090150 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Availability 15
  • cluster-md-kmp-default >= 4.12.14-25.3.1
  • dlm-kmp-default >= 4.12.14-25.3.1
  • gfs2-kmp-default >= 4.12.14-25.3.1
  • kernel-default >= 4.12.14-25.3.1
  • ocfs2-kmp-default >= 4.12.14-25.3.1
Patchnames:
SUSE-SLE-Product-HA-15-2018-1420
SUSE Linux Enterprise Module for Basesystem 15
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-devel >= 4.12.14-25.3.1
  • kernel-default-man >= 4.12.14-25.3.1
  • kernel-devel >= 4.12.14-25.3.1
  • kernel-macros >= 4.12.14-25.3.1
  • kernel-source >= 4.12.14-25.3.1
  • kernel-zfcpdump >= 4.12.14-25.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2018-1420
SUSE Linux Enterprise Module for Development Tools 15
  • kernel-docs >= 4.12.14-25.3.1
  • kernel-obs-build >= 4.12.14-25.3.1
  • kernel-source >= 4.12.14-25.3.1
  • kernel-syms >= 4.12.14-25.3.1
  • kernel-vanilla >= 4.12.14-25.3.1
  • kernel-vanilla-base >= 4.12.14-25.3.1
Patchnames:
SUSE-SLE-Module-Development-Tools-15-2018-1420
SUSE Linux Enterprise Module for Legacy Software 15
  • kernel-default >= 4.12.14-25.3.1
  • reiserfs-kmp-default >= 4.12.14-25.3.1
Patchnames:
SUSE-SLE-Module-Legacy-15-2018-1420
SUSE Linux Enterprise Module for Live Patching 15
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-livepatch >= 4.12.14-25.3.1
  • kernel-livepatch-4_12_14-25_3-default >= 1-1.3.1
  • kernel-livepatch-SLE15_Update_1 >= 1-1.3.1
Patchnames:
SUSE-SLE-Module-Live-Patching-15-2018-1420
SUSE Linux Enterprise Workstation Extension 15
  • kernel-default >= 4.12.14-25.3.1
  • kernel-default-extra >= 4.12.14-25.3.1
Patchnames:
SUSE-SLE-Product-WE-15-2018-1420
openSUSE Leap 15.0
  • kernel-debug >= 4.12.14-lp150.12.7.1
  • kernel-debug-base >= 4.12.14-lp150.12.7.1
  • kernel-debug-base-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-debug-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-debug-debugsource >= 4.12.14-lp150.12.7.1
  • kernel-debug-devel >= 4.12.14-lp150.12.7.1
  • kernel-debug-devel-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-default >= 4.12.14-lp150.12.7.1
  • kernel-default-base >= 4.12.14-lp150.12.7.1
  • kernel-default-base-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-default-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-default-debugsource >= 4.12.14-lp150.12.7.1
  • kernel-default-devel >= 4.12.14-lp150.12.7.1
  • kernel-default-devel-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-devel >= 4.12.14-lp150.12.7.1
  • kernel-docs >= 4.12.14-lp150.12.7.1
  • kernel-docs-html >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-base >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-base-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-debugsource >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-devel >= 4.12.14-lp150.12.7.1
  • kernel-kvmsmall-devel-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-macros >= 4.12.14-lp150.12.7.1
  • kernel-obs-build >= 4.12.14-lp150.12.7.1
  • kernel-obs-build-debugsource >= 4.12.14-lp150.12.7.1
  • kernel-obs-qa >= 4.12.14-lp150.12.7.1
  • kernel-source >= 4.12.14-lp150.12.7.1
  • kernel-source-vanilla >= 4.12.14-lp150.12.7.1
  • kernel-syms >= 4.12.14-lp150.12.7.1
  • kernel-vanilla >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-base >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-base-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-debuginfo >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-debugsource >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-devel >= 4.12.14-lp150.12.7.1
  • kernel-vanilla-devel-debuginfo >= 4.12.14-lp150.12.7.1
Patchnames:
openSUSE-2018-762


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 Desktop 12 SP2 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA kernel-source Released
SUSE Linux Enterprise Module for Development Tools 15 GA kernel-source Released
SUSE Linux Enterprise Server 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Server 12 SP2 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