Alerts This Week
Warning Icon 1 923
Alerts This Week
Warning Icon 1 923

Red Hat Enterprise Linux 7: RHSA-2020-2085-01 Important kernel-rt Update

red hat
Calendar Grey May 12, 2020
Dist Redhat Esm H88
An essential kernel security and bug resolution patch has been released for Red Hat Enterprise Linux, classified with significant security implications.
An update for kernel-rt is now available for Red Hat Enterprise Linux 7

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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c (CVE-2017-18595)
* kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)
* Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)
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-rt: update to the RHEL7.8.z batch#1 source tree (BZ#1812282)

Topics%20covered

Topics Covered

security advisory bug fix kernel security Red Hat Enterprise Linux security impact important update kernel-rt

References

https://access.redhat.com/security/cve/CVE-2017-18595 https://access.redhat.com/security/cve/CVE-2019-19768 https://access.redhat.com/security/cve/CVE-2020-10711 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source: kernel-rt-3.10.0-1127.8.2.rt56.1103.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-1127.8.2.rt56.1103.el7.noarch.rpm
x86_64: kernel-rt-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debug-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-devel-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-trace-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1127.8.2.rt56.1103.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source: kernel-rt-3.10.0-1127.8.2.rt56.1103.el7.src.rpm
noarch:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2085-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2085
Issue date: 2020-05-12

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.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 bug fix kernel security Red Hat Enterprise Linux security impact important update kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64

Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64

Bugs Fixed

1758671 - CVE-2017-18595 kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c

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

1825116 - CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here