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

Synopsis:          Important: kernel-alt security, bug fix, and enhancement update
Advisory ID:       RHSA-2019:2809-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2809
Issue date:        2019-09-20
CVE Names:         CVE-2019-5489 CVE-2019-6974 CVE-2019-13272
====================================================================
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: page cache side channel attacks (CVE-2019-5489)

* Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()
(CVE-2019-6974)

* kernel: broken permission and object lifetime handling for PTRACE_TRACEME
(CVE-2019-13272)

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):

* [kernel-alt]: BUG: unable to handle kernel NULL pointer IP:
crypto_remove_spawns+0x118/0x2e0 (BZ#1536967)

* [HPE Apache] update ssif max_xmit_msg_size limit for multi-part messages
(BZ#1610534)

* RHEL-Alt-7.6 - powerpc/pseries: Fix unitialized timer reset on migration
/ powerpc/pseries/mobility: Extend start/stop topology update scope (LPM)
(BZ#1673613)

* RHEL-Alt-7.6 - s390: sha3_generic module fails and triggers panic when in
FIPS mode (BZ#1673979)

* RHEL-Alt-7.6 - System crashed after oom - During ICP deployment
(BZ#1710304)

* kernel-alt: Race condition in hashtables [rhel-alt-7.6.z] (BZ#1712127)

* RHEL-Alt-7.6 - OP930:PM_Test:cpupower -r command set values for first 3
cores in quad and misses last core. (CORAL) (BZ#1717836)

* RHEL-Alt-7.6 - disable runtime NUMA remapping for PRRN/LPM/VPHN
(BZ#1717906)

* fragmented packets timing out (BZ#1729066)

* Backport TCP follow-up for small buffers (BZ#1733617)

Enhancement(s):

* RHEL-Alt-7.6 - perfevent PMDA cannot create file descriptors for reading
nest events using the perf API (pcp/kernel) (CORAL) (BZ#1723036)

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/):

1664110 - CVE-2019-5489 Kernel: page cache side channel attacks
1671913 - CVE-2019-6974 Kernel: KVM: potential use-after-free via kvm_ioctl_create_device()
1730895 - CVE-2019-13272 kernel: broken permission and object lifetime handling for PTRACE_TRACEME

6. Package List:

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

Source:
kernel-alt-4.14.0-115.12.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.12.1.el7a.aarch64.rpm
perf-4.14.0-115.12.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
python-perf-4.14.0-115.12.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.12.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.12.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.12.1.el7a.ppc64le.rpm
perf-4.14.0-115.12.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.12.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.12.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.12.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.12.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.12.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.12.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.12.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.12.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.12.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.12.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.12.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.12.1.el7a.s390x.rpm
perf-4.14.0-115.12.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.12.1.el7a.s390x.rpm
python-perf-4.14.0-115.12.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.12.1.el7a.s390x.rpm

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

aarch64:
kernel-debug-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.12.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.12.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.12.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.12.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.12.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.12.1.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-2019-5489
https://access.redhat.com/security/cve/CVE-2019-6974
https://access.redhat.com/security/cve/CVE-2019-13272
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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