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Red Hat Security Advisory 2020-2104-01

Red Hat Security Advisory 2020-2104-01
Posted May 12, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2104-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include denial of service, double free, null pointer, out of bounds read, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, redhat
advisories | CVE-2017-18551, CVE-2017-18595, CVE-2019-12614, CVE-2019-15538, CVE-2019-19447, CVE-2019-19524, CVE-2019-19768, CVE-2019-9454, CVE-2020-10711, CVE-2020-9383
SHA-256 | 55f2ffea99360d36e4e47e4a4596c9101c111085b9c05e6e7bde118e57a5e0ee

Red Hat Security Advisory 2020-2104-01

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

Synopsis: Important: kernel-alt security and bug fix update
Advisory ID: RHSA-2020:2104-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2104
Issue date: 2020-05-12
CVE Names: CVE-2017-18551 CVE-2017-18595 CVE-2019-9454
CVE-2019-12614 CVE-2019-15538 CVE-2019-19447
CVE-2019-19524 CVE-2019-19768 CVE-2020-9383
CVE-2020-10711
=====================================================================

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):

* kernel: double free may be caused by the function allocate_trace_buffer
in the file kernel/trace/trace.c (CVE-2017-18595)

* kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
(CVE-2019-19768)

* Kernel: NetLabel: null pointer dereference while receiving CIPSO packet
with null category may cause kernel panic (CVE-2020-10711)

* kernel: out of bounds write in function i2c_smbus_xfer_emulated in
drivers/i2c/i2c-core-smbus.c (CVE-2017-18551)

* kernel: out of bounds write in i2c driver leads to local escalation of
privilege (CVE-2019-9454)

* kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c
(CVE-2019-15538)

* kernel: mounting a crafted ext4 filesystem image, performing some
operations, and unmounting can lead to a use-after-free in ext4_put_super
in fs/ext4/super.c (CVE-2019-19447)

* kernel: a malicious USB device in the drivers/input/ff-memless.c leads to
use-after-free (CVE-2019-19524)

* kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
(CVE-2020-9383)

* kernel: null pointer dereference in dlpar_parse_cc_property in
arch/powerrc/platforms/pseries/dlpar.c causing denial of service
(CVE-2019-12614)

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):

* [7.5-alt][ext4/xfstests generic/468] fix fdatasync(2) after fallocate(2)
operation (upstream fixed) [rhel-alt-7.6.z] (BZ#1554273)

* [RHEL-ALT-7.6.z][arm64] CN99xx: DIMM errors not populated in EDAC sysfs
(BZ#1778697)

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/):

1718176 - CVE-2019-12614 kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c causing denial of service
1746777 - CVE-2019-15538 kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c
1757368 - CVE-2017-18551 kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c
1758671 - CVE-2017-18595 kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c
1781679 - CVE-2019-19447 kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c
1783459 - CVE-2019-19524 kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free
1786164 - CVE-2019-19768 kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
1810685 - CVE-2020-9383 kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
1818818 - CVE-2019-9454 kernel: out of bounds write in i2c driver leads to local escalation of privilege
1825116 - CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic

6. Package List:

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

Source:
kernel-alt-4.14.0-115.21.2.el7a.src.rpm

aarch64:
kernel-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debug-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-devel-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-headers-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-tools-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.21.2.el7a.aarch64.rpm
perf-4.14.0-115.21.2.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
python-perf-4.14.0-115.21.2.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.21.2.el7a.noarch.rpm
kernel-doc-4.14.0-115.21.2.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.21.2.el7a.ppc64le.rpm
perf-4.14.0-115.21.2.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
python-perf-4.14.0-115.21.2.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.21.2.el7a.s390x.rpm
kernel-debug-4.14.0-115.21.2.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.21.2.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.21.2.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.21.2.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.21.2.el7a.s390x.rpm
kernel-devel-4.14.0-115.21.2.el7a.s390x.rpm
kernel-headers-4.14.0-115.21.2.el7a.s390x.rpm
kernel-kdump-4.14.0-115.21.2.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.21.2.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.21.2.el7a.s390x.rpm
perf-4.14.0-115.21.2.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.21.2.el7a.s390x.rpm
python-perf-4.14.0-115.21.2.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.21.2.el7a.s390x.rpm

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

aarch64:
kernel-debug-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.21.2.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.21.2.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.21.2.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.21.2.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.21.2.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.21.2.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-2017-18551
https://access.redhat.com/security/cve/CVE-2017-18595
https://access.redhat.com/security/cve/CVE-2019-9454
https://access.redhat.com/security/cve/CVE-2019-12614
https://access.redhat.com/security/cve/CVE-2019-15538
https://access.redhat.com/security/cve/CVE-2019-19447
https://access.redhat.com/security/cve/CVE-2019-19524
https://access.redhat.com/security/cve/CVE-2019-19768
https://access.redhat.com/security/cve/CVE-2020-9383
https://access.redhat.com/security/cve/CVE-2020-10711
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 2020 Red Hat, Inc.
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