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RedHat: RHSA-2020-1966-01 Important: Kernel Security Update for RHEL

red hat
Calendar Grey April 29, 2020
Dist Redhat Esm H88
A significant kernel security patch has been released for Red Hat Enterprise Linux 8.0 to fix severe vulnerabilities in blktrace.
An update for kernel is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions

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):
* blktrace: Protect q->blk_trace with RCU (CVE-2019-19768)

Topics%20covered

Topics Covered

security advisory security update critical Red Hat Enterprise Linux important kernel blktrace

References

https://access.redhat.com/security/cve/CVE-2019-19768 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS E4S (v. 8.0):
Source: kernel-4.18.0-80.18.1.el8_0.src.rpm
aarch64: bpftool-4.18.0-80.18.1.el8_0.aarch64.rpm bpftool-debuginfo-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-core-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-cross-headers-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-core-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-debuginfo-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-devel-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-modules-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debug-modules-extra-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debuginfo-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-debuginfo-common-aarch64-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-devel-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-headers-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-modules-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-modules-extra-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-tools-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-tools-debuginfo-4.18.0-80.18.1.el8_0.aarch64.rpm kernel-tools-libs-4.18.0-80.18.1.el8_0.aarch64.rpm perf-4.18.0-80.18.1.el8_0.aarch64.rpm perf-debuginfo-4.18.0-80.18.1.el8_0.aarch64.rpm python3-perf-4.18.0-80.18.1.el8_0.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1966-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1966
Issue date: 2020-04-29

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.0UpdateServices for SAP Solutions.Red Hat Product Security has rated this update as having a security impactofImportant. A Common Vulnerability Scoring System (CVSS) base score, whichgivesa detailed severity rating, is available for each vulnerability from theCVElink(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update critical Red Hat Enterprise Linux important kernel blktrace

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS E4S (v. 8.0) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1786164 - CVE-2019-19768 kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c

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