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Red Hat Security Advisory

Synopsis: Important: kernel-alt security and bug fix update
Advisory ID: RHSA-2020:1493-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1493
Issue date: 2020-04-16
CVE Names: CVE-2019-5108 CVE-2019-14895 CVE-2019-14901
CVE-2019-15031 CVE-2019-15099 CVE-2019-15666
CVE-2019-19922 CVE-2019-20054 CVE-2019-20095
=====================================================================

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: heap-based buffer overflow in mwifiex_process_country_ie()
function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
(CVE-2019-14895)

* kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)

* kernel: triggering AP to send IAPP location updates for stations before
the required authentication process has completed can lead to DoS
(CVE-2019-5108)

* kernel: powerpc: local user can read vector registers of other users’
processes via an interrupt (CVE-2019-15031)

* kernel: out-of-bounds array access in __xfrm_policy_unlink
(CVE-2019-15666)

* kernel: a NULL pointer dereference in
drivers/net/wireless/ath/ath10k/usb.c leads to a crash (CVE-2019-15099)

* kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial
of service against non-cpu-bound applications (CVE-2019-19922)

* kernel: Null pointer dereference in drop_sysctl_table() in
fs/proc/proc_sysctl.c (CVE-2019-20054)

* kernel: memory leak in mwifiex_tm_cmd in
drivers/net/wireless/marvell/mwifiex/cfg80211.c (CVE-2019-20095)

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):

* rhel-alt-76z bsd process accounting(acct(2)) does not work (BZ#1763618)

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/):

1743560 – CVE-2019-15099 kernel: a NULL pointer dereference in drivers/net/wireless/ath/ath10k/usb.c leads to a crash
1747334 – CVE-2019-15666 kernel: out-of-bounds array access in __xfrm_policy_unlink
1760063 – CVE-2019-15031 kernel: powerpc: local user can read vector registers of other users’ processes via an interrupt
1773519 – CVE-2019-14901 kernel: heap overflow in marvell/mwifiex/tdls.c
1774870 – CVE-2019-14895 kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c
1789927 – CVE-2019-5108 kernel: triggering AP to send IAPP location updates for stations before the required authentication process has completed can lead to DoS
1790063 – CVE-2019-20054 kernel: Null pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c
1791954 – CVE-2019-20095 kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c
1792512 – CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications

6. Package List:

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

Source:
kernel-alt-4.14.0-115.19.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.19.1.el7a.aarch64.rpm
perf-4.14.0-115.19.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
python-perf-4.14.0-115.19.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.19.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.19.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.19.1.el7a.ppc64le.rpm
perf-4.14.0-115.19.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.19.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.19.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.19.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.19.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.19.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.19.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.19.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.19.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.19.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.19.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.19.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.19.1.el7a.s390x.rpm
perf-4.14.0-115.19.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.19.1.el7a.s390x.rpm
python-perf-4.14.0-115.19.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.19.1.el7a.s390x.rpm

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

aarch64:
kernel-debug-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.19.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.19.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.19.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.19.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.19.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.19.1.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-2019-5108
https://access.redhat.com/security/cve/CVE-2019-14895
https://access.redhat.com/security/cve/CVE-2019-14901
https://access.redhat.com/security/cve/CVE-2019-15031
https://access.redhat.com/security/cve/CVE-2019-15099
https://access.redhat.com/security/cve/CVE-2019-15666
https://access.redhat.com/security/cve/CVE-2019-19922
https://access.redhat.com/security/cve/CVE-2019-20054
https://access.redhat.com/security/cve/CVE-2019-20095
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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