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Red Hat: RHSA-2023:0979-01 Critical: Kernel-RT Update for Major Issues

red hat
Calendar Grey February 28, 2023
Dist Redhat Esm H88
Oracle has issued a significant patch for its database software, correcting various vulnerabilities in Cloud Infrastructure 3. Stay informed.
An update for kernel-rt 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-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)
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack (CVE-2022-4379)
* kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan (CVE-2023-0179)
* kernel: an out-of-bounds vulnerability in i2c-ismt driver (CVE-2022-2873)
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-9.1.z2 Batch (BZ#2160463)

Topics%20covered

Topics Covered

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

References

https://access.redhat.com/security/cve/CVE-2022-2873 https://access.redhat.com/security/cve/CVE-2022-3564 https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2022-4379 https://access.redhat.com/security/cve/CVE-2023-0179 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Real Time for NFV (v. 9):
Source: kernel-rt-5.14.0-162.18.1.rt21.181.el9_1.src.rpm
x86_64: kernel-rt-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-core-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-debuginfo-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-devel-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-kvm-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-modules-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debug-modules-extra-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debuginfo-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-debuginfo-common-x86_64-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-devel-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-kvm-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-modules-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-modules-extra-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 9):
Source: kernel-rt-5.14.0-162.18.1.rt21.181.el9_1.src.rpm
x86_64: kernel-rt-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm kernel-rt-core-5.14.0-162.18.1.rt21.181.el9_1.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:0979-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0979
Issue date: 2023-02-28

Topic

An update for kernel-rt 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 bug fix Red Hat Enterprise Linux security impact Denial of Service important update kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux Real Time (v. 9) - x86_64

Red Hat Enterprise Linux Real Time for NFV (v. 9) - x86_64

Bugs Fixed

2119048 - CVE-2022-2873 kernel: an out-of-bounds vulnerability in i2c-ismt driver

2150999 - CVE-2022-3564 kernel: use-after-free caused by l2cap_reassemble_sdu() in net/bluetooth/l2cap_core.c

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

2152807 - CVE-2022-4379 kernel: use-after-free in __nfs42_ssc_open() in fs/nfs/nfs4file.c leading to remote Denial of Service attack

2161713 - CVE-2023-0179 kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan

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