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Alerts This Week
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Important Alert for RHEL 9: Kernel DoS Issue RHSA-2023-1703-01

red hat
Calendar Grey April 11, 2023
Dist Redhat Esm H88
Critical kernel patch released for Red Hat Enterprise Linux 9 addressing a vulnerability allowing privilege escalation by low-privileged users.
An update for kernel is now available for Red Hat Enterprise Linux 9

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: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386)
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):
* Update intel_idle for Eaglestream/Sapphire Rapids support (BZ#2168361)
* RHEL9: An application stopped on robust futex used via pthread_mutex_lock() (BZ#2168836)

Topics%20covered

Topics Covered

security advisory Red Hat kernel update bug fix important filesystem escalation

References

https://access.redhat.com/security/cve/CVE-2023-0386 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 9):
aarch64: bpftool-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-debug-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-debug-devel-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-debug-devel-matched-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-debuginfo-common-aarch64-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-devel-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-devel-matched-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-headers-5.14.0-162.23.1.el9_1.aarch64.rpm kernel-tools-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm perf-5.14.0-162.23.1.el9_1.aarch64.rpm perf-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm python3-perf-debuginfo-5.14.0-162.23.1.el9_1.aarch64.rpm
noarch: kernel-doc-5.14.0-162.23.1.el9_1.noarch.rpm
ppc64le: bpftool-debuginfo-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-debug-debuginfo-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-debug-devel-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-debug-devel-matched-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-debuginfo-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-debuginfo-common-ppc64le-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-devel-5.14.0-162.23.1.el9_1.ppc64le.rpm kernel-devel-matched-5.14.0-162.23.1.el9_1.ppc64le.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:1703-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1703
Issue date: 2023-04-11

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.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 filesystem escalation

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 9) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 9) - aarch64, noarch, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2159505 - CVE-2023-0386 kernel: FUSE filesystem low-privileged user privileges escalation

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