Upstream information

CVE-2016-4794 at MITRE

Description

Use-after-free vulnerability in mm/percpu.c in the Linux kernel through 4.6 allows local users to cause a denial of service (BUG) or possibly have unspecified other impact via crafted use of the mmap and bpf system calls.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 7.2 6.9
Vector AV:L/AC:L/Au:N/C:C/I:C/A:C AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local Local
Access Complexity Low Medium
Authentication None None
Confidentiality Impact Complete Complete
Integrity Impact Complete Complete
Availability Impact Complete Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.8
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3

Note from the SUSE Security Team

This issue does only affect Linux Kernel 3.18 and newer, so SUSE Linux Enterprise 12 SP1 and older are not affected.

SUSE Bugzilla entries: 980265 [RESOLVED / FIXED], 981517 [RESOLVED / UPSTREAM]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12 SP2
  • kernel-default >= 4.4.21-69.1
  • kernel-default-devel >= 4.4.21-69.1
  • kernel-default-extra >= 4.4.21-69.1
  • kernel-devel >= 4.4.21-69.1
  • kernel-macros >= 4.4.21-69.1
  • kernel-source >= 4.4.21-69.1
  • kernel-syms >= 4.4.21-69.1
SUSE Linux Enterprise Desktop 12 SP3
  • kernel-default >= 4.4.73-5.1
  • kernel-default-devel >= 4.4.73-5.1
  • kernel-default-extra >= 4.4.73-5.1
  • kernel-devel >= 4.4.73-5.1
  • kernel-macros >= 4.4.73-5.1
  • kernel-source >= 4.4.73-5.1
  • kernel-syms >= 4.4.73-5.1
SUSE Linux Enterprise High Availability 12 SP2
  • cluster-md-kmp-default >= 4.4.21-69.1
  • cluster-network-kmp-default >= 4.4.21-69.1
  • dlm-kmp-default >= 4.4.21-69.1
  • gfs2-kmp-default >= 4.4.21-69.1
  • ocfs2-kmp-default >= 4.4.21-69.1
SUSE Linux Enterprise High Availability 12 SP3
  • cluster-md-kmp-default >= 4.4.73-5.1
  • dlm-kmp-default >= 4.4.73-5.1
  • gfs2-kmp-default >= 4.4.73-5.1
  • ocfs2-kmp-default >= 4.4.73-5.1
SUSE Linux Enterprise Server 12 SP2
  • kernel-default >= 4.4.21-69.1
  • kernel-default-base >= 4.4.21-69.1
  • kernel-default-devel >= 4.4.21-69.1
  • kernel-default-man >= 4.4.21-69.1
  • kernel-devel >= 4.4.21-69.1
  • kernel-macros >= 4.4.21-69.1
  • kernel-source >= 4.4.21-69.1
  • kernel-syms >= 4.4.21-69.1
SUSE Linux Enterprise Server 12 SP3
  • kernel-default >= 4.4.73-5.1
  • kernel-default-base >= 4.4.73-5.1
  • kernel-default-devel >= 4.4.73-5.1
  • kernel-default-man >= 4.4.73-5.1
  • kernel-devel >= 4.4.73-5.1
  • kernel-macros >= 4.4.73-5.1
  • kernel-source >= 4.4.73-5.1
  • kernel-syms >= 4.4.73-5.1
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • kernel-default >= 4.4.21-69.1
  • kernel-default-base >= 4.4.21-69.1
  • kernel-default-devel >= 4.4.21-69.1
  • kernel-devel >= 4.4.21-69.1
  • kernel-macros >= 4.4.21-69.1
  • kernel-source >= 4.4.21-69.1
  • kernel-syms >= 4.4.21-69.1
SUSE Linux Enterprise Software Development Kit 12 SP2
  • kernel-docs >= 4.4.21-69.1
  • kernel-obs-build >= 4.4.21-69.1
SUSE Linux Enterprise Software Development Kit 12 SP3
  • kernel-docs >= 4.4.73-5.1
  • kernel-obs-build >= 4.4.73-5.1
SUSE Linux Enterprise Workstation Extension 12 SP2
  • kernel-default-extra >= 4.4.21-69.1
SUSE Linux Enterprise Workstation Extension 12 SP3
  • kernel-default-extra >= 4.4.73-5.1
openSUSE Leap 42.1
  • kernel-debug >= 4.1.27-24.1
  • kernel-debug-base >= 4.1.27-24.1
  • kernel-debug-base-debuginfo >= 4.1.27-24.1
  • kernel-debug-debuginfo >= 4.1.27-24.1
  • kernel-debug-debugsource >= 4.1.27-24.1
  • kernel-debug-devel >= 4.1.27-24.1
  • kernel-debug-devel-debuginfo >= 4.1.27-24.1
  • kernel-default >= 4.1.27-24.1
  • kernel-default-base >= 4.1.27-24.1
  • kernel-default-base-debuginfo >= 4.1.27-24.1
  • kernel-default-debuginfo >= 4.1.27-24.1
  • kernel-default-debugsource >= 4.1.27-24.1
  • kernel-default-devel >= 4.1.27-24.1
  • kernel-devel >= 4.1.27-24.1
  • kernel-docs >= 4.1.27-24.2
  • kernel-docs-html >= 4.1.27-24.2
  • kernel-docs-pdf >= 4.1.27-24.2
  • kernel-ec2 >= 4.1.27-24.1
  • kernel-ec2-base >= 4.1.27-24.1
  • kernel-ec2-base-debuginfo >= 4.1.27-24.1
  • kernel-ec2-debuginfo >= 4.1.27-24.1
  • kernel-ec2-debugsource >= 4.1.27-24.1
  • kernel-ec2-devel >= 4.1.27-24.1
  • kernel-macros >= 4.1.27-24.1
  • kernel-obs-build >= 4.1.27-24.2
  • kernel-obs-build-debugsource >= 4.1.27-24.2
  • kernel-obs-qa >= 4.1.27-24.1
  • kernel-obs-qa-xen >= 4.1.27-24.1
  • kernel-pae >= 4.1.27-24.1
  • kernel-pae-base >= 4.1.27-24.1
  • kernel-pae-base-debuginfo >= 4.1.27-24.1
  • kernel-pae-debuginfo >= 4.1.27-24.1
  • kernel-pae-debugsource >= 4.1.27-24.1
  • kernel-pae-devel >= 4.1.27-24.1
  • kernel-pv >= 4.1.27-24.1
  • kernel-pv-base >= 4.1.27-24.1
  • kernel-pv-base-debuginfo >= 4.1.27-24.1
  • kernel-pv-debuginfo >= 4.1.27-24.1
  • kernel-pv-debugsource >= 4.1.27-24.1
  • kernel-pv-devel >= 4.1.27-24.1
  • kernel-source >= 4.1.27-24.1
  • kernel-source-vanilla >= 4.1.27-24.1
  • kernel-syms >= 4.1.27-24.1
  • kernel-vanilla >= 4.1.27-24.1
  • kernel-vanilla-debuginfo >= 4.1.27-24.1
  • kernel-vanilla-debugsource >= 4.1.27-24.1
  • kernel-vanilla-devel >= 4.1.27-24.1
  • kernel-xen >= 4.1.27-24.1
  • kernel-xen-base >= 4.1.27-24.1
  • kernel-xen-base-debuginfo >= 4.1.27-24.1
  • kernel-xen-debuginfo >= 4.1.27-24.1
  • kernel-xen-debugsource >= 4.1.27-24.1
  • kernel-xen-devel >= 4.1.27-24.1
Patchnames:
openSUSE-2016-869
openSUSE Leap 42.2
  • kernel-default >= 4.4.27-2.1
  • kernel-default-devel >= 4.4.27-2.1
  • kernel-devel >= 4.4.27-2.1
  • kernel-docs >= 4.4.27-2.1
  • kernel-macros >= 4.4.27-2.1
  • kernel-source >= 4.4.27-2.1
  • kernel-syms >= 4.4.27-2.1
Patchnames:
openSUSE Leap 42.2 GA kernel-default
openSUSE Leap 42.3
  • kernel-default >= 4.4.76-1.1
  • kernel-default-devel >= 4.4.76-1.1
  • kernel-devel >= 4.4.76-1.1
  • kernel-docs >= 4.4.76-1.1
  • kernel-macros >= 4.4.76-1.1
  • kernel-source >= 4.4.76-1.1
  • kernel-syms >= 4.4.76-1.1
Patchnames:
openSUSE Leap 42.3 GA kernel-default


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
SLES for SAP Applications kernel-source Analysis
SLES_LTSS-10-SP4 kernel-source Not affected
SUSE Linux Enterprise 15 Module for Basesystem kernel-source Analysis
SUSE Linux Enterprise 15 Module for Development Tools kernel-source Analysis
SUSE Linux Enterprise 15-SP1 Module for Basesystem kernel-source Analysis
SUSE Linux Enterprise 15-SP1 Module for Development Tools kernel-source Analysis
SUSE Linux Enterprise Desktop 11 SP4 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 kernel-source Not affected
SUSE Linux Enterprise Desktop 12 SP1 kernel-source Unsupported
SUSE Linux Enterprise Desktop 12 SP3 kernel-source Analysis
SUSE Linux Enterprise Desktop 12 SP4 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 12 SP4 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 12 SP5 kernel-source Analysis
SUSE Linux Enterprise High Performance Computing 15 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 11 SP1 kernel-source Analysis
SUSE Linux Enterprise Server 11 SP2 LTSS kernel-source Not affected
SUSE Linux Enterprise Server 11 SP3 kernel-source Analysis
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 11 SP4 kernel-source Analysis
SUSE Linux Enterprise Server 11 SP4 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 kernel-source Not affected
SUSE Linux Enterprise Server 12 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP1 kernel-source Unsupported
SUSE Linux Enterprise Server 12 SP1 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 BCL kernel-source Analysis
SUSE Linux Enterprise Server 12 SP2 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 BCL kernel-source Analysis
SUSE Linux Enterprise Server 12 SP3 LTSS kernel-source Analysis
SUSE Linux Enterprise Server 12 SP4 kernel-source Analysis
SUSE Linux Enterprise Server 12 SP5 kernel-source Analysis
SUSE Linux Enterprise Server 15 LTSS kernel-source Analysis
SUSE Linux Enterprise Server ESPOS 15 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP2 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP3 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP4 kernel-source Analysis
SUSE Linux Enterprise Server for SAP Applications 12 SP5 kernel-source Analysis