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Red Hat Enterprise Linux 7.6: RHSA-2020:3226-01 Important Kernel Update

red hat
Calendar Grey July 29, 2020
Dist Redhat Esm H88
Critical patch release for Ubuntu Server OS classified as urgent. Incorporates crucial CVE resolutions.
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: kernel: DAX hugepages not considered during mremap (CVE-2020-10757)
* 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)
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: provide infrastructure to support dual-signing of the kernel (foundation to help address CVE-2020-10713) (BZ#1837427)
* Fix dpdk regression introduced by bz1837297 (BZ#1852775)
* Possible race condition updating the cfg structure in __assign_irq_vector. (BZ#1854552)

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow kernel update bug fix important security impact

References

https://access.redhat.com/security/cve/CVE-2020-10757 https://access.redhat.com/security/cve/CVE-2020-12653 https://access.redhat.com/security/cve/CVE-2020-12654 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/grub2bootloader

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.6):
Source: kernel-3.10.0-957.58.2.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.58.2.el7.noarch.rpm kernel-doc-3.10.0-957.58.2.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.58.2.el7.x86_64.rpm kernel-3.10.0-957.58.2.el7.x86_64.rpm kernel-debug-3.10.0-957.58.2.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.58.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.58.2.el7.x86_64.rpm kernel-devel-3.10.0-957.58.2.el7.x86_64.rpm kernel-headers-3.10.0-957.58.2.el7.x86_64.rpm kernel-tools-3.10.0-957.58.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.58.2.el7.x86_64.rpm perf-3.10.0-957.58.2.el7.x86_64.rpm perf-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm python-perf-3.10.0-957.58.2.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
x86_64: kernel-debug-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.58.2.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.58.2.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3226-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3226
Issue date: 2020-07-29

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 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 buffer overflow kernel update bug fix important security impact

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

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

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

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