Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2016.2373
Important: kernel security update
11 October 2016
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Linux variants
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-7039
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2016-2047.html
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running kernel check for an updated version of the software for
their operating system.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update
Advisory ID: RHSA-2016:2047-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2047.html
Issue date: 2016-10-10
CVE Names: CVE-2016-7039
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* Linux kernel built with the 802.1Q/802.1ad VLAN(CONFIG_VLAN_8021Q) OR
Virtual eXtensible Local Area Network(CONFIG_VXLAN) with Transparent
Ethernet Bridging(TEB) GRO support, is vulnerable to a stack overflow
issue. It could occur while receiving large packets via GRO path as an
unlimited recursion could unfold in both VLAN and TEB modules leading to a
stack corruption in the kernel. (CVE-2016-7039, Important)
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1375944 - CVE-2016-7039 kernel: remotely triggerable unbounded recursion in the vlan gro code leading to a kernel crash
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-327.36.2.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.36.2.el7.noarch.rpm
kernel-doc-3.10.0-327.36.2.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-headers-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.x86_64.rpm
perf-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-327.36.2.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.36.2.el7.noarch.rpm
kernel-doc-3.10.0-327.36.2.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-headers-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.x86_64.rpm
perf-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-327.36.2.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.36.2.el7.noarch.rpm
kernel-doc-3.10.0-327.36.2.el7.noarch.rpm
ppc64:
kernel-3.10.0-327.36.2.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debug-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-327.36.2.el7.ppc64.rpm
kernel-devel-3.10.0-327.36.2.el7.ppc64.rpm
kernel-headers-3.10.0-327.36.2.el7.ppc64.rpm
kernel-tools-3.10.0-327.36.2.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.ppc64.rpm
perf-3.10.0-327.36.2.el7.ppc64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
python-perf-3.10.0-327.36.2.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debug-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-devel-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-headers-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-tools-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.ppc64le.rpm
perf-3.10.0-327.36.2.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
python-perf-3.10.0-327.36.2.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
s390x:
kernel-3.10.0-327.36.2.el7.s390x.rpm
kernel-debug-3.10.0-327.36.2.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.s390x.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-327.36.2.el7.s390x.rpm
kernel-devel-3.10.0-327.36.2.el7.s390x.rpm
kernel-headers-3.10.0-327.36.2.el7.s390x.rpm
kernel-kdump-3.10.0-327.36.2.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
kernel-kdump-devel-3.10.0-327.36.2.el7.s390x.rpm
perf-3.10.0-327.36.2.el7.s390x.rpm
perf-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
python-perf-3.10.0-327.36.2.el7.s390x.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.s390x.rpm
x86_64:
kernel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-headers-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.x86_64.rpm
perf-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-327.36.2.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.ppc64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-327.36.2.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.36.2.el7.noarch.rpm
kernel-doc-3.10.0-327.36.2.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-devel-3.10.0-327.36.2.el7.x86_64.rpm
kernel-headers-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.36.2.el7.x86_64.rpm
perf-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.36.2.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.36.2.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-7039
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2016 Red Hat, Inc.
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