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Red Hat Enterprise Linux 8 RHSA-2020:3010-01 Important Kernel Update

red hat
Calendar Grey July 21, 2020
Dist Redhat Esm H88
A crucial security notification outlining kernel enhancements and repairs has been released for users of Red Hat Enterprise Linux.
An update for kernel is now available for Red Hat Enterprise Linux 8

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: use-after-free in sound/core/timer.c (CVE-2019-19807)
* kernel: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)
* kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (CVE-2020-10766)
* kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (CVE-2020-10767)
* kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (CVE-2020-10768)
* kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c (CVE-2020-12653)
* kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c (CVE-2020-12654)
* Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)
* kernel: kvm: Information leak within a KVM guest (CVE-2019-3016)
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):
* [FJ8.2 Bug]: kernel: retrieving process core dump of the init process (PID 1) fails (BZ#1821378)
* [FJ8.0 Bug]: System hungs up after setting parameters for hugepages (BZ#1835789)
* RHEL8.2 Alpha - ISST-LTE:PowerVM: vNIC DLPAR crashes the LPAR (ibmvnic) (BZ#1836229)
* "[sig-network] Services should be rejected when no endpoints exist" test fails frequently on RHEL8 nodes (BZ#1836302)
* RHEL8.2 Beta - RHEL8.2 reports EEH errors on internal SAS adapter during HTX run on PMEM (SCM/pmem) (BZ#1842406)
* RHEL8.1 - s390/cio: fix virtio-ccw DMA without PV (BZ#1842620)
* deadlock between modprobe and netns exit (BZ#1845164)
* exit_boot failed when install RHEL8.1 (BZ#1846180)
* http request is taking more time for endpoint running on different host via nodeport service (BZ#1847128)
* RHEL8.1 - zEDC problems on z14 (genwqe/pci) (BZ#1847453)
* WARNING: CPU: 1 PID: 0 at arch/x86/kernel/apic/vector.c:846 free_moved_vector+0x141/0x150 (BZ#1848545)
* Backport conntrack race condition fixes (BZ#1851003)
* nf_conntrack module unload fail and refcount become to negative (BZ#1851005)
* OVS: backport performance patches from upstream to 8.2z (BZ#1851235)
* RHEL8.3: backport "smp: Allow smp_call_function_single_async() to insert locked csd" (BZ#1851406)
* [DELL EMC 8.2 BUG] NVMe drive is not detected after multiple hotplug (hot add + surprise remove) operations (BZ#1852045)
Enhancement(s):
* [Mellanox 8.3 FEAT] mlx5: drivers update upto Linux v5.5 (BZ#1843544)
* [IBM 8.3 FEAT] Update nvme driver to latest level for POWER (BZ#1846405)

Topics%20covered

Topics Covered

security advisory red hat bug fix important kernel system update Linux kernel

References

https://access.redhat.com/security/cve/CVE-2019-3016 https://access.redhat.com/security/cve/CVE-2019-19807 https://access.redhat.com/security/cve/CVE-2020-10757 https://access.redhat.com/security/cve/CVE-2020-10766 https://access.redhat.com/security/cve/CVE-2020-10767 https://access.redhat.com/security/cve/CVE-2020-10768 https://access.redhat.com/security/cve/CVE-2020-12653 https://access.redhat.com/security/cve/CVE-2020-12654 https://access.redhat.com/security/cve/CVE-2020-12888 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kernel-4.18.0-193.13.2.el8_2.src.rpm
aarch64: bpftool-4.18.0-193.13.2.el8_2.aarch64.rpm bpftool-debuginfo-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-core-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-cross-headers-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-core-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-debuginfo-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-devel-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-modules-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debug-modules-extra-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debuginfo-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-devel-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-headers-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-modules-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-modules-extra-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-tools-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-tools-debuginfo-4.18.0-193.13.2.el8_2.aarch64.rpm kernel-tools-libs-4.18.0-193.13.2.el8_2.aarch64.rpm perf-4.18.0-193.13.2.el8_2.aarch64.rpm perf-debuginfo-4.18.0-193.13.2.el8_2.aarch64.rpm python3-perf-4.18.0-193.13.2.el8_2.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3010-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3010
Issue date: 2020-07-21

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat bug fix important kernel system update Linux kernel

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1786078 - CVE-2019-19807 kernel: use-after-free in sound/core/timer.c

1792167 - CVE-2019-3016 kernel: kvm: Information leak within a KVM guest

1831868 - CVE-2020-12653 kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c

1832530 - CVE-2020-12654 kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c

1836244 - CVE-2020-12888 Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

1842525 - CVE-2020-10757 kernel: kernel: DAX hugepages not considered during mremap

1845840 - CVE-2020-10766 kernel: Rogue cross-process SSBD shutdown. Linux scheduler logical bug allows an attacker to turn off the SSBD protection.

1845867 - CVE-2020-10767 kernel: Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available.

1845868 - CVE-2020-10768 kernel: Indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command.

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