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

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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2019:3979-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:3979
Issue date:        2019-11-26
CVE Names:         CVE-2019-14821 CVE-2019-15239 
====================================================================
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: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

* kernel: local attacker can trigger multiple use-after-free conditions
results in privilege escalation (CVE-2019-15239)

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):

* On RHEL 7.7 kernel SCSI VPD information for NVMe drives is missing
(breaks InfoScale) (BZ#1752423)

* RHEL7 fnic spamming logs: Current vnic speed set to : 40000 (BZ#1754836)

* kernel build: parallelize redhat/mod-sign.sh (BZ#1755330)

* kernel build: speed up module compression step (BZ#1755339)

* Nested VirtualBox VMs on Windows guest has the potential of impacting
memory region allocated to other KVM guests (BZ#1755781)

* NULL pointer dereference at check_preempt_wakeup+0x109 (BZ#1756265)

* Regression: panic in pick_next_task_rt (BZ#1756267)

* ixgbe reports "Detected Tx Unit Hang" with adapter reset on RHEL 7
(BZ#1757350)

* [Intel 7.8 Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled
in VM. (BZ#1757757)

* nvme: dead loop in blk_mq_tagset_wait_completed_request() when it is
called from timeout handler (BZ#1758051)

* [mlx5] VF Representer naming is not consistent/persistent through reboots
with OSPD deployment (BZ#1759003)

* OS getting restarted because of driver issue with QLogic Corp.
ISP2532-based 8Gb Fibre Channel to PCI Express HBA [1077:2532] (rev 02).
(BZ#1759447)

* mlx5: Load balancing not working over VF LAG configuration (BZ#1759449)

* RHEL7.8 - ISST-LTE: vimlp1: Running LTP af_alg04.c (crypto) crash the
LPAR (BZ#1763620)

* RHEL7.5 - Fix security issues on crypto vmx (BZ#1763621)

* RHEL 7.7 RC1 - Host crashes about 4.5 hours into switch port bounce test
(BZ#1763624)

* RHEL7.6 - cacheinfo code unsafe vs LPM (BZ#1763625)

* xfs hangs on acquiring  xfs_buf semaphore (BZ#1764245)

* single CPU VM hangs during open_posix_testsuite (BZ#1766087)

* rcu_sched self-detected stall on CPU while booting with nohz_full
(BZ#1766098)

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/):

1746708 - CVE-2019-14821 Kernel: KVM: OOB memory access via mmio ring buffer
1747353 - CVE-2019-15239 kernel: local attacker can trigger multiple use-after-free conditions results in privilege escalation

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-1062.7.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.7.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.7.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.7.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.x86_64.rpm
perf-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

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

x86_64:
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-1062.7.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.7.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.7.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.7.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.x86_64.rpm
perf-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

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

x86_64:
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-1062.7.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.7.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.7.1.el7.noarch.rpm

ppc64:
bpftool-3.10.0-1062.7.1.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debug-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-devel-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-headers-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-tools-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.ppc64.rpm
perf-3.10.0-1062.7.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
python-perf-3.10.0-1062.7.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm

ppc64le:
bpftool-3.10.0-1062.7.1.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.ppc64le.rpm
perf-3.10.0-1062.7.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
python-perf-3.10.0-1062.7.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm

s390x:
bpftool-3.10.0-1062.7.1.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm
kernel-3.10.0-1062.7.1.el7.s390x.rpm
kernel-debug-3.10.0-1062.7.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1062.7.1.el7.s390x.rpm
kernel-devel-3.10.0-1062.7.1.el7.s390x.rpm
kernel-headers-3.10.0-1062.7.1.el7.s390x.rpm
kernel-kdump-3.10.0-1062.7.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1062.7.1.el7.s390x.rpm
perf-3.10.0-1062.7.1.el7.s390x.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm
python-perf-3.10.0-1062.7.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.s390x.rpm

x86_64:
bpftool-3.10.0-1062.7.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.x86_64.rpm
perf-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

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

ppc64:
bpftool-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.ppc64.rpm

ppc64le:
bpftool-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.ppc64le.rpm

x86_64:
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-1062.7.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.7.1.el7.noarch.rpm
kernel-doc-3.10.0-1062.7.1.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.7.1.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-devel-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-headers-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.7.1.el7.x86_64.rpm
perf-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm

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

x86_64:
bpftool-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.7.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.7.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.7.1.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-2019-14821
https://access.redhat.com/security/cve/CVE-2019-15239
https://access.redhat.com/security/updates/classification#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2019 Red Hat, Inc.
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