ESB-2018.1859 - [RedHat] kernel-alt: Access privileged data - Existing account 2018-06-27

Printable version
PGP/GPG verifiable version

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1859
             Important: kernel-alt security and bug fix update
                               27 June 2018

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kernel-alt
Publisher:         Red Hat
Operating System:  Red Hat
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-3639 CVE-2017-5715 

Reference:         ASB-2018.0121
                   ASB-2018.0116
                   ASB-2018.0101
                   ESB-2018.0046
                   ESB-2018.0044
                   ESB-2018.0042.2

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2018:1967

- --------------------------BEGIN INCLUDED TEXT--------------------

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel-alt security and bug fix update
Advisory ID:       RHSA-2018:1967-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:1967
Issue date:        2018-06-26
CVE Names:         CVE-2018-3639 
=====================================================================

1. Summary:

An update for kernel-alt 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

3. Description:

The kernel-alt packages provide the Linux kernel version 4.x.

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)

* This release also includes next iteration of the CVE-2017-5715 mitigation
that includes the SMCCC (Secure Monitor Call Calling Convention) 1.1
support. (CVE-2017-5715, ARM)

Red Hat would like to thank Google Project Zero for reporting CVE-2017-5715
and Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google
Project Zero) for reporting CVE-2018-3639.

Bug Fix(es):

These updated kernel-alt packages include 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/3485851

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/):

1519780 - CVE-2017-5715 hw: cpu: speculative execution branch target injection
1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

6. Package List:

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
kernel-alt-4.14.0-49.8.1.el7a.src.rpm

aarch64:
kernel-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debug-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-devel-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-headers-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-tools-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-49.8.1.el7a.aarch64.rpm
perf-4.14.0-49.8.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
python-perf-4.14.0-49.8.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-49.8.1.el7a.noarch.rpm
kernel-doc-4.14.0-49.8.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-49.8.1.el7a.ppc64le.rpm
perf-4.14.0-49.8.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
python-perf-4.14.0-49.8.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-49.8.1.el7a.s390x.rpm
kernel-debug-4.14.0-49.8.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-49.8.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-49.8.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-49.8.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-49.8.1.el7a.s390x.rpm
kernel-devel-4.14.0-49.8.1.el7a.s390x.rpm
kernel-headers-4.14.0-49.8.1.el7a.s390x.rpm
kernel-kdump-4.14.0-49.8.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-49.8.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-49.8.1.el7a.s390x.rpm
perf-4.14.0-49.8.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-49.8.1.el7a.s390x.rpm
python-perf-4.14.0-49.8.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-49.8.1.el7a.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
kernel-debug-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-49.8.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-49.8.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-49.8.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-49.8.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-49.8.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-49.8.1.el7a.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-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/cve/CVE-2018-3639
https://access.redhat.com/security/cve/CVE-2017-5715
https://access.redhat.com/articles/3485851

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.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=VQbz
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=mX/H
-----END PGP SIGNATURE-----

« Back to bulletins