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

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 7.15 6.89
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 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

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
Patchnames:
SUSE Linux Enterprise Desktop 12 SP2 GA kernel-default
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
Patchnames:
SUSE Linux Enterprise Server 12 SP2 GA kernel-default
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
Patchnames:
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 GA kernel-default
SUSE Linux Enterprise Software Development Kit 12 SP2
  • kernel-docs >= 4.4.21-69.1
  • kernel-obs-build >= 4.4.21-69.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP2 GA kernel-docs
SUSE Linux Enterprise Workstation Extension 12 SP2
  • kernel-default-extra >= 4.4.21-69.1
Patchnames:
SUSE Linux Enterprise Workstation Extension 12 SP2 GA kernel-default-extra
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