Operating System:

[RedHat]

Published:

04 December 2019

Protect yourself against future threats.

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

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

                               ESB-2019.4547
       RHEL 7.4 AUS, E4S and TUS: kernel security and bug fix update
                              4 December 2019

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

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

Product:           kernel
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 7
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Access Privileged Data          -- Existing Account      
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-11811 CVE-2019-7221 CVE-2019-5489
                   CVE-2019-3900 CVE-2017-18208 CVE-2017-10661

Reference:         ESB-2019.3575
                   ESB-2018.0844
                   ESB-2017.2379

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2019:4058

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

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

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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2019:4058-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:4058
Issue date:        2019-12-03
CVE Names:         CVE-2017-10661 CVE-2017-18208 CVE-2019-3900 
                   CVE-2019-5489 CVE-2019-7221 CVE-2019-11811 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.4
Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
Solutions.

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 Server AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS
(CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the
preemption timer (CVE-2019-7221)

* kernel: Handling of might_cancel queueing is not properly pretected
against race (CVE-2017-10661)

* kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed()
function allows local denial of service (CVE-2017-18208)

* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c,
ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Bug Fix(es):

* [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group
(BZ#1748234)

* kmem, memcg: system crash due to cache destruction race (BZ#1754829)

* kernel build: parallelize redhat/mod-sign.sh (BZ#1755327)

* kernel build: speed up module compression step (BZ#1755336)

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/):

1481136 - CVE-2017-10661 kernel: Handling of might_cancel queueing is not properly pretected against race
1551565 - CVE-2017-18208 kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service
1664110 - CVE-2019-5489 Kernel: page cache side channel attacks
1671904 - CVE-2019-7221 Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer
1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS
1709180 - CVE-2019-11811 kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
kernel-3.10.0-693.61.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.61.1.el7.noarch.rpm
kernel-doc-3.10.0-693.61.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.61.1.el7.x86_64.rpm
perf-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.4):

Source:
kernel-3.10.0-693.61.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.61.1.el7.noarch.rpm
kernel-doc-3.10.0-693.61.1.el7.noarch.rpm

ppc64le:
kernel-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.61.1.el7.ppc64le.rpm
perf-3.10.0-693.61.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
python-perf-3.10.0-693.61.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm

x86_64:
kernel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.61.1.el7.x86_64.rpm
perf-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.4):

Source:
kernel-3.10.0-693.61.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.61.1.el7.noarch.rpm
kernel-doc-3.10.0-693.61.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.61.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.61.1.el7.x86_64.rpm
perf-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.4):

ppc64le:
kernel-debug-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.61.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.61.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.61.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.61.1.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-2017-10661
https://access.redhat.com/security/cve/CVE-2017-18208
https://access.redhat.com/security/cve/CVE-2019-3900
https://access.redhat.com/security/cve/CVE-2019-5489
https://access.redhat.com/security/cve/CVE-2019-7221
https://access.redhat.com/security/cve/CVE-2019-11811
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 2019 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=EwKJ
- -----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

iQIVAwUBXecn12aOgq3Tt24GAQhwbw//ZzswcBEShiVxIqO4y06l16VEyKqaGmVG
V8LkOzHAQqTKibjHAya4Hm870dHVa8wvI40caKjG+riKkISi1aueBi0aU7nwA4Sv
lXcBx5//h/scvbG3n3SyxGeYUn/yeugkbR8NGuz1xr7p8vff824VUoksMho0u9x8
tShl0XtNppMW/1bSVAwQk8pkFyJIGOjYsDcDfJFDaZsEiHhDtrnnlw/HdDM6bEKX
/g/Di1nt0yNIxADzn3dQucBe8mWRiJhJtqFlTFgyc8V/b215/WuWaMfEPI45UZHe
cTjqS7FFGLzUAnxztrEzZp89cuwrJGjPkzZVC+Aj31RaB8iehvgd7xEOHVP4s27B
tXBbAQh5/ggskpQlf0lRm/cchdRihiXpV00b0PH/lWA7tVc+yBtwNOCVsqEpn6Pt
e3RZ5MFugr2kyBzZNPU+S3oHwdkZIJbW6xqYB3xortdAg7MuZ+KW8ZqR2n86XTC+
vjloDRhp3UC7b5OePQ80QrRIg0DqJb/ArJEgqj4pHiQLXpLQjBkUj3W+80w0KpXe
zAheqKYMie+dwOcR3BD113szPuNNHK9K8OucNe7+xSFb4TJ9pBsQn0ntpS43dcWs
0Knf6lB16cMuFf2VkstPGiMoviHZXyBxaippl4DVIzmIKOC2uhwEe2XTGGk2TJwf
PiWOT6WJRLE=
=lWH6
-----END PGP SIGNATURE-----