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Red Hat Enterprise Linux 7.7 RHSA-2021-2523-01 Important Kernel Update

red hat
Calendar Grey June 22, 2021
Dist Redhat Esm H88
Canonical announces a critical software patch aimed at resolving vulnerabilities and enhancing performance for Ubuntu 18.04 LTS.
An update for kernel is now available for Red Hat Enterprise Linux 7.7 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: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)
* kernel: use-after-free in fs/block_dev.c (CVE-2020-15436)
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):
* RHEL7.7 - s390/dasd: Fix zero write for FBA devices (BZ#1931440)
* Kernel experiences panic in update_group_power() due to division error even with Bug 1701115 fix (BZ#1961623)

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix important security impact system reboot

References

https://access.redhat.com/security/cve/CVE-2020-12362 https://access.redhat.com/security/cve/CVE-2020-15436 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7):
Source: kernel-3.10.0-1062.51.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1062.51.1.el7.noarch.rpm kernel-doc-3.10.0-1062.51.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1062.51.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debug-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.51.1.el7.x86_64.rpm kernel-devel-3.10.0-1062.51.1.el7.x86_64.rpm kernel-headers-3.10.0-1062.51.1.el7.x86_64.rpm kernel-tools-3.10.0-1062.51.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.51.1.el7.x86_64.rpm perf-3.10.0-1062.51.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm python-perf-3.10.0-1062.51.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7):
x86_64: bpftool-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.51.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2523-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2523
Issue date: 2021-06-22

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.7Extended 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 kernel update bug fix important security impact system reboot

Relevant Releases Architectures

Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) - x86_64

Red Hat Enterprise Linux Server EUS (v. 7.7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 7.7) - ppc64, ppc64le, x86_64

Bugs Fixed

1901168 - CVE-2020-15436 kernel: use-after-free in fs/block_dev.c

1930246 - CVE-2020-12362 kernel: Integer overflow in Intel(R) Graphics Drivers

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