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[RHSA-2019:0163-01] Important: kernel security, bug fix, and enhancement update



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

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2019:0163-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:0163
Issue date:        2019-01-29
CVE Names:         CVE-2018-18397 CVE-2018-18559 
=====================================================================

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):

* kernel: Use-after-free due to race condition in AF_PACKET implementation
(CVE-2018-18559)

* kernel: userfaultfd bypasses tmpfs file permissions (CVE-2018-18397)

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.

Bug Fix(es):

These updated kernel packages include also numerous bug fixes and
enhancements. Space precludes documenting all of the bug fixes in this
advisory. See the descriptions in the related Knowledge Article:
https://access.redhat.com/articles/3827321

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/):

1641548 - CVE-2018-18397 kernel: userfaultfd bypasses tmpfs file permissions
1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-957.5.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.5.1.el7.noarch.rpm
kernel-doc-3.10.0-957.5.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.5.1.el7.x86_64.rpm
kernel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.x86_64.rpm
perf-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-957.5.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.5.1.el7.noarch.rpm
kernel-doc-3.10.0-957.5.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.5.1.el7.x86_64.rpm
kernel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.x86_64.rpm
perf-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-957.5.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.5.1.el7.noarch.rpm
kernel-doc-3.10.0-957.5.1.el7.noarch.rpm

ppc64:
kernel-3.10.0-957.5.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debug-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.5.1.el7.ppc64.rpm
kernel-devel-3.10.0-957.5.1.el7.ppc64.rpm
kernel-headers-3.10.0-957.5.1.el7.ppc64.rpm
kernel-tools-3.10.0-957.5.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.ppc64.rpm
perf-3.10.0-957.5.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
python-perf-3.10.0-957.5.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debug-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-devel-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-headers-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-tools-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.ppc64le.rpm
perf-3.10.0-957.5.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
python-perf-3.10.0-957.5.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm

s390x:
kernel-3.10.0-957.5.1.el7.s390x.rpm
kernel-debug-3.10.0-957.5.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-957.5.1.el7.s390x.rpm
kernel-devel-3.10.0-957.5.1.el7.s390x.rpm
kernel-headers-3.10.0-957.5.1.el7.s390x.rpm
kernel-kdump-3.10.0-957.5.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-957.5.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-957.5.1.el7.s390x.rpm
perf-3.10.0-957.5.1.el7.s390x.rpm
perf-debuginfo-3.10.0-957.5.1.el7.s390x.rpm
python-perf-3.10.0-957.5.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.s390x.rpm

x86_64:
bpftool-3.10.0-957.5.1.el7.x86_64.rpm
kernel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.x86_64.rpm
perf-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-957.5.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-957.5.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-957.5.1.el7.noarch.rpm
kernel-doc-3.10.0-957.5.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-957.5.1.el7.x86_64.rpm
kernel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-devel-3.10.0-957.5.1.el7.x86_64.rpm
kernel-headers-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-957.5.1.el7.x86_64.rpm
perf-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-957.5.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-957.5.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-957.5.1.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-2018-18397
https://access.redhat.com/security/cve/CVE-2018-18559
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.
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