Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2018.1858
Important: kernel security and bug fix update
27 June 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Impact/Access: Access Privileged Data -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-3639 CVE-2017-11600
Reference: ASB-2018.0121
ESB-2018.1797
ESB-2018.1750
ESB-2018.1549
ESB-2018.1548.6
ESB-2018.1545
Original Bulletin:
https://access.redhat.com/errata/RHSA-2018:1965
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Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:1965-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1965
Issue date: 2018-06-26
CVE Names: CVE-2017-11600 CVE-2018-3639
=====================================================================
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
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - noarch, ppc64le
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor's data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639, PowerPC, x86 AMD)
* kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message
(CVE-2017-11600)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting CVE-2018-3639.
Bug Fix(es):
These updated kernel packages include also numerous bug fixes. Space
precludes documenting all of the bug fixes in this advisory. See the
descriptions in the related Knowledge Article:
https://access.redhat.com/articles/3485871
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/):
1474928 - CVE-2017-11600 kernel: Out-of-bounds access via an XFRM_MSG_MIGRATE xfrm Netlink message
1566890 - CVE-2018-3639 hw: cpu: speculative store bypass
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-862.6.3.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.6.3.el7.noarch.rpm
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-headers-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.x86_64.rpm
perf-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-862.6.3.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.6.3.el7.noarch.rpm
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-headers-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.x86_64.rpm
perf-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-862.6.3.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.6.3.el7.noarch.rpm
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
ppc64:
kernel-3.10.0-862.6.3.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debug-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.6.3.el7.ppc64.rpm
kernel-devel-3.10.0-862.6.3.el7.ppc64.rpm
kernel-headers-3.10.0-862.6.3.el7.ppc64.rpm
kernel-tools-3.10.0-862.6.3.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.ppc64.rpm
perf-3.10.0-862.6.3.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
python-perf-3.10.0-862.6.3.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-devel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-headers-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.ppc64le.rpm
perf-3.10.0-862.6.3.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
s390x:
kernel-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.6.3.el7.s390x.rpm
kernel-devel-3.10.0-862.6.3.el7.s390x.rpm
kernel-headers-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.6.3.el7.s390x.rpm
perf-3.10.0-862.6.3.el7.s390x.rpm
perf-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
python-perf-3.10.0-862.6.3.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
x86_64:
kernel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-headers-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.x86_64.rpm
perf-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):
noarch:
kernel-abi-whitelists-3.10.0-862.6.3.el7.noarch.rpm
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
ppc64le:
kernel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-devel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-headers-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.ppc64le.rpm
perf-3.10.0-862.6.3.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
s390x:
kernel-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.s390x.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-862.6.3.el7.s390x.rpm
kernel-devel-3.10.0-862.6.3.el7.s390x.rpm
kernel-headers-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
kernel-kdump-devel-3.10.0-862.6.3.el7.s390x.rpm
perf-3.10.0-862.6.3.el7.s390x.rpm
perf-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
python-perf-3.10.0-862.6.3.el7.s390x.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.s390x.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-862.6.3.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.ppc64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):
noarch:
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.ppc64le.rpm
perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.ppc64le.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-862.6.3.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-862.6.3.el7.noarch.rpm
kernel-doc-3.10.0-862.6.3.el7.noarch.rpm
x86_64:
kernel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debug-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-devel-3.10.0-862.6.3.el7.x86_64.rpm
kernel-headers-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-3.10.0-862.6.3.el7.x86_64.rpm
perf-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-862.6.3.el7.x86_64.rpm
perf-debuginfo-3.10.0-862.6.3.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-862.6.3.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-2017-11600
https://access.redhat.com/security/cve/CVE-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/articles/3485871
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2018 Red Hat, Inc.
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This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
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