Red Hat Enterprise Linux: RHSA-2023-1560-01 Important Kernel-RT Update
red hat
April 4, 2023
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service
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: use-after-free caused by l2cap_reassemble_sdu() in
net/bluetooth/l2cap_core.c (CVE-2022-3564)
* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
(CVE-2023-0266)
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 RT source tree to the latest RHEL-8.2.z (BZ#2174904)
Topics Covered
References
https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/cve/CVE-2023-0266 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2):
Source:
kernel-rt-4.18.0-193.105.1.rt13.156.el8_2.src.rpm
x86_64:
kernel-rt-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-core-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-core-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-devel-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-modules-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debuginfo-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-devel-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-kvm-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-modules-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
kernel-rt-modules-extra-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
Red Hat Enterprise Linux Real Time TUS (v. 8.2):
Source:
kernel-rt-4.18.0-193.105.1.rt13.156.el8_2.src.rpm
x86_64:
kernel-rt-4.18.0-193.105.1.rt13.156.el8_2.x86_64.rpm
Read the Full Advisory
PREVIOUS 
NEXT Severity
important
Lowest
Low
Medium
High
Critical
Advisory ID: RHSA-2023:1560-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1560
Issue date: 2023-04-04
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2Telecommunications Update Service.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 Covered
Relevant Releases Architectures
Red Hat Enterprise Linux Real Time TUS (v. 8.2) - x86_64
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) - x86_64
Bugs Fixed
2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c
2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
Get the latest News and Insights
Get the latest Linux and open source security news straight to your inbox.
Powered By
Linux Security - Your source for Top Linux News, Advisories, HOWTOs and Feature Releases
QUICK LINKS
subscribe to newsletters!
Like staying secure? So do we.
Sign up for updates, tips, and alerts!