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[RHSA-2017:0004-01] Important: kernel security and bug fix update

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2017:0004-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0004.html

Issue date: 2017-01-03

CVE Names: CVE-2016-8666

=====================================================================

 

1. Summary:

 

An update for kernel is now available for Red Hat Enterprise Linux 7.1

Extended Update Support.

 

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 ComputeNode EUS (v. 7.1) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.1) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.1) - ppc64, ppc64le, s390x, x86_64

 

3. Description:

 

The kernel packages contain the Linux kernel, the core of any Linux

operating system.

 

Security Fix(es):

 

* A flaw was found in the way the Linux kernel's networking subsystem

handled offloaded packets with multiple layers of encapsulation in the GRO

(Generic Receive Offload) code path. A remote attacker could use this flaw

to trigger unbounded recursion in the kernel that could lead to stack

corruption, resulting in a system crash. (CVE-2016-8666, Important)

 

Bug Fix(es):

 

* When a virtual machine (VM) with PCI-Passthrough interfaces was

recreated, the operating system rebooted. This update fixes the race

condition between the eventfd daemon and the virqfd daemon. As a result,

the operating system no longer reboots in the described situation.

(BZ#1391609)

 

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/):

 

1384991 - CVE-2016-8666 kernel: Remotely triggerable recursion in GRE code leading to kernel crash

 

6. Package List:

 

Red Hat Enterprise Linux ComputeNode EUS (v. 7.1):

 

Source:

kernel-3.10.0-229.46.1.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.46.1.el7.noarch.rpm

kernel-doc-3.10.0-229.46.1.el7.noarch.rpm

 

x86_64:

kernel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm

kernel-devel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-headers-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.46.1.el7.x86_64.rpm

perf-3.10.0-229.46.1.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.1):

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.46.1.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server EUS (v. 7.1):

 

Source:

kernel-3.10.0-229.46.1.el7.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.46.1.el7.noarch.rpm

kernel-doc-3.10.0-229.46.1.el7.noarch.rpm

 

ppc64:

kernel-3.10.0-229.46.1.el7.ppc64.rpm

kernel-bootwrapper-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debug-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debug-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debug-devel-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-229.46.1.el7.ppc64.rpm

kernel-devel-3.10.0-229.46.1.el7.ppc64.rpm

kernel-headers-3.10.0-229.46.1.el7.ppc64.rpm

kernel-tools-3.10.0-229.46.1.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-tools-libs-3.10.0-229.46.1.el7.ppc64.rpm

perf-3.10.0-229.46.1.el7.ppc64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

 

s390x:

kernel-3.10.0-229.46.1.el7.s390x.rpm

kernel-debug-3.10.0-229.46.1.el7.s390x.rpm

kernel-debug-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

kernel-debug-devel-3.10.0-229.46.1.el7.s390x.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-229.46.1.el7.s390x.rpm

kernel-devel-3.10.0-229.46.1.el7.s390x.rpm

kernel-headers-3.10.0-229.46.1.el7.s390x.rpm

kernel-kdump-3.10.0-229.46.1.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

kernel-kdump-devel-3.10.0-229.46.1.el7.s390x.rpm

perf-3.10.0-229.46.1.el7.s390x.rpm

perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

 

x86_64:

kernel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debug-devel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm

kernel-devel-3.10.0-229.46.1.el7.x86_64.rpm

kernel-headers-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-libs-3.10.0-229.46.1.el7.x86_64.rpm

perf-3.10.0-229.46.1.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server EUS (v. 7.1):

 

Source:

kernel-3.10.0-229.46.1.ael7b.src.rpm

 

noarch:

kernel-abi-whitelists-3.10.0-229.46.1.ael7b.noarch.rpm

kernel-doc-3.10.0-229.46.1.ael7b.noarch.rpm

 

ppc64le:

kernel-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-bootwrapper-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debug-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debug-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debuginfo-common-ppc64le-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-headers-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-tools-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-tools-libs-3.10.0-229.46.1.ael7b.ppc64le.rpm

perf-3.10.0-229.46.1.ael7b.ppc64le.rpm

perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

python-perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

 

Red Hat Enterprise Linux Server Optional EUS (v. 7.1):

 

ppc64:

kernel-debug-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-debuginfo-common-ppc64-3.10.0-229.46.1.el7.ppc64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

kernel-tools-libs-devel-3.10.0-229.46.1.el7.ppc64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

python-perf-3.10.0-229.46.1.el7.ppc64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

kernel-debuginfo-common-s390x-3.10.0-229.46.1.el7.s390x.rpm

kernel-kdump-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

python-perf-3.10.0-229.46.1.el7.s390x.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-debuginfo-common-x86_64-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

kernel-tools-libs-devel-3.10.0-229.46.1.el7.x86_64.rpm

perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-3.10.0-229.46.1.el7.x86_64.rpm

python-perf-debuginfo-3.10.0-229.46.1.el7.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional EUS (v. 7.1):

 

ppc64le:

kernel-debug-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debug-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-debuginfo-common-ppc64le-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-tools-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

kernel-tools-libs-devel-3.10.0-229.46.1.ael7b.ppc64le.rpm

perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.rpm

python-perf-3.10.0-229.46.1.ael7b.ppc64le.rpm

python-perf-debuginfo-3.10.0-229.46.1.ael7b.ppc64le.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-2016-8666

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2017 Red Hat, Inc.

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