Upstream information

CVE-2016-6516 at MITRE

Description

Race condition in the ioctl_file_dedupe_range function in fs/ioctl.c in the Linux kernel through 4.7 allows local users to cause a denial of service (heap-based buffer overflow) or possibly gain privileges by changing a certain count value, aka a "double fetch" vulnerability.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 4.4 6.9
Vector AV:L/AC:M/Au:N/C:P/I:P/A:P AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local Local
Access Complexity Medium Medium
Authentication None None
Confidentiality Impact Partial Complete
Integrity Impact Partial Complete
Availability Impact Partial Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.4
Vector AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Access Vector Local
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
SUSE Bugzilla entries: 991604 [RESOLVED / FIXED], 991669 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Availability 15
  • cluster-md-kmp-default >= 4.12.14-23.1
  • dlm-kmp-default >= 4.12.14-23.1
  • gfs2-kmp-default >= 4.12.14-23.1
  • ocfs2-kmp-default >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise High Availability 15 GA cluster-md-kmp-default
SUSE Linux Enterprise Module for Basesystem 15
  • kernel-default >= 4.12.14-23.1
  • kernel-default-devel >= 4.12.14-23.1
  • kernel-devel >= 4.12.14-23.1
  • kernel-macros >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA kernel-default
SUSE Linux Enterprise Module for Development Tools 15
  • kernel-docs >= 4.12.14-23.1
  • kernel-obs-build >= 4.12.14-23.1
  • kernel-source >= 4.12.14-23.1
  • kernel-syms >= 4.12.14-23.1
  • kernel-vanilla-base >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise Module for Development Tools 15 GA kernel-docs
SUSE Linux Enterprise Module for Legacy Software 15
  • reiserfs-kmp-default >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise Module for Legacy Software 15 GA reiserfs-kmp-default
SUSE Linux Enterprise Module for Live Patching 15
  • kernel-default-livepatch >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise Module for Live Patching 15 GA kernel-default-livepatch
SUSE Linux Enterprise Workstation Extension 15
  • kernel-default-extra >= 4.12.14-23.1
Patchnames:
SUSE Linux Enterprise Workstation Extension 15 GA kernel-default-extra
openSUSE Leap 15.0
  • kernel-default >= 4.12.14-lp150.11.4
  • kernel-vanilla-base >= 4.12.14-lp150.11.4
Patchnames:
openSUSE Leap 15.0 GA kernel-default
openSUSE Tumbleweed
  • kernel-debug >= 4.8.13-1.1
  • kernel-debug-base >= 4.8.13-1.1
  • kernel-debug-devel >= 4.8.13-1.1
  • kernel-default >= 4.8.13-1.1
  • kernel-default-base >= 4.8.13-1.1
  • kernel-default-devel >= 4.8.13-1.1
  • kernel-devel >= 4.8.13-1.1
  • kernel-docs >= 4.8.13-1.1
  • kernel-docs-html >= 4.8.13-1.1
  • kernel-docs-pdf >= 4.8.13-1.1
  • kernel-macros >= 4.8.13-1.1
  • kernel-obs-build >= 4.8.13-1.1
  • kernel-obs-qa >= 4.8.13-1.1
  • kernel-pae >= 4.8.13-1.1
  • kernel-pae-base >= 4.8.13-1.1
  • kernel-pae-devel >= 4.8.13-1.1
  • kernel-source >= 4.8.13-1.1
  • kernel-source-vanilla >= 4.8.13-1.1
  • kernel-syms >= 4.8.13-1.1
  • kernel-syzkaller >= 4.8.13-1.1
  • kernel-syzkaller-base >= 4.8.13-1.1
  • kernel-syzkaller-devel >= 4.8.13-1.1
  • kernel-vanilla >= 4.8.13-1.1
  • kernel-vanilla-base >= 4.8.13-1.1
  • kernel-vanilla-devel >= 4.8.13-1.1
Patchnames:
openSUSE Tumbleweed GA kernel-debug


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 SP1 kernel-default Not affected
SUSE Linux Enterprise Server 10 SP4 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 11 SP2 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 11 SP3 LTSS kernel-default Not affected
SUSE Linux Enterprise Server 11 SP4 kernel-default Not affected
SUSE Linux Enterprise Server 12 GA LTSS kernel-default Not affected
SUSE Linux Enterprise Server 12 SP1 kernel-default Not affected
SUSE Linux Enterprise Workstation Extension 12 GA kernel-default Not affected
SUSE Linux Enterprise Workstation Extension 12 SP1 kernel-default Not affected