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Red Hat 7.6: RHSA-2020-0179-01 Moderate: Kernel Update and Fixes

red hat
Calendar Grey January 21, 2020
Dist Redhat Esm H88
Ubuntu 20.04 kernel upgrade introduces vital security enhancements and bug resolutions. Implement it swiftly to maintain system integrity.
An update for kernel is now available for Red Hat Enterprise Linux 7.6 Extended Update Support

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)
* kernel: TLB flush happens too late on mremap (CVE-2018-18281)
* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)
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 7.7 RC1 - Host crashes about 4.5 hours into switch port bounce test (BZ#1763623)
* [Azure][7.8] Include patch "PCI: hv: Avoid use of hv_pci_dev->pci_slot after freeing it" (BZ#1766088)
* [Hyper-V][RHEL7.8] When accelerated networking is enabled on RedHat, network interface(eth0) moved to new network namespace does not obtain IP address. (BZ#1766092)
* [Azure][RHEL 7.6] hv_vmbus probe pass-through GPU card failed (BZ#1766096)
* Since RHEL commit 5330f5d09820 high load can cause dm-multipath path failures (BZ#1770112)
* Hard lockup in free_one_page()->_raw_spin_lock() because sosreport command is reading from /proc/pagetypeinfo (BZ#1770731)
* [ESXi][RHEL7]use-after-free of scsi_cmnd on VMWare virtual guest with vmw_pvscsi and ata_piix (BZ#1770737)
* fix compat statfs64() returning EOVERFLOW for when _FILE_OFFSET_BITS=64 (BZ#1775677)
* Kernel experiences panic in update_group_power() due to division error (BZ#1775681)
* Guest crash after load cpuidle-haltpoll driver (BZ#1776288)
* Issues with nova/cinder and attaching disks, /dev/disk/by-id missing some times (BZ#1776291)

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix moderate severity memory management kvm issue

References

https://access.redhat.com/security/cve/CVE-2018-10853 https://access.redhat.com/security/cve/CVE-2018-18281 https://access.redhat.com/security/cve/CVE-2019-11599 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: kernel-3.10.0-957.43.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.43.1.el7.noarch.rpm kernel-doc-3.10.0-957.43.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.43.1.el7.x86_64.rpm kernel-3.10.0-957.43.1.el7.x86_64.rpm kernel-debug-3.10.0-957.43.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.43.1.el7.x86_64.rpm kernel-devel-3.10.0-957.43.1.el7.x86_64.rpm kernel-headers-3.10.0-957.43.1.el7.x86_64.rpm kernel-tools-3.10.0-957.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.43.1.el7.x86_64.rpm perf-3.10.0-957.43.1.el7.x86_64.rpm perf-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm python-perf-3.10.0-957.43.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
x86_64: kernel-debug-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.43.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.43.1.el7.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:0179-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0179
Issue date: 2020-01-21

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix moderate severity memory management kvm issue

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.6) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, x86_64

Bugs Fixed

1589890 - CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write

1645121 - CVE-2018-18281 kernel: TLB flush happens too late on mremap

1705937 - CVE-2019-11599 kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping

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