Red Hat Security Advisory 2022-0176-06 ≈ Packet Storm

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Red Hat Security Advisory 2022-0176-06^[6]: Authored by Red Hat ^[7] | Site access.redhat.com ^[8]; Red Hat Security Advisory 2022-0176-06 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a heap overflow vulnerability.; systems | linux ^[9], redhat ^[10]; advisories | CVE-2021-4155 ^[11], CVE-2022-0185 ^[12]; MD5 | 7e95d48c61f1042f312eef724405c18b; Download ^[13] | Favorite ^[14] | View ^[15]

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Red Hat Security Advisory
Synopsis:          Important: kernel-rt security and bug fix update
Advisory ID:       RHSA-2022:0176-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:0176
Issue date:        2022-01-19
CVE Names:         CVE-2021-4155 CVE-2022-0185
====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
Red Hat Enterprise Linux for Real Time (v. 8) - x86_64
3. Description:
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: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
(CVE-2021-4155)
* kernel: fs_context: heap overflow in legacy parameter handling
(CVE-2022-0185)
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):
* kernnel-rt-debug: do not call blocking ops when !TASK_RUNNING; state=1
set at [<0000000050e86018>] handle_userfault+0x530/0x1820 (BZ#2029422)
* kernel-rt: update RT source tree to the RHEL-8.5.z source tree
(BZ#2032059)
4. 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.
5. Bugs fixed (https://bugzilla.redhat.com/):
2034813 - CVE-2021-4155 kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
2040358 - CVE-2022-0185 kernel: fs_context: heap overflow in legacy parameter handling
6. Package List:
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source:
kernel-rt-4.18.0-348.12.2.rt7.143.el8_5.src.rpm
x86_64:
kernel-rt-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-core-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-core-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-devel-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-modules-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debuginfo-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-devel-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-kvm-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-modules-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-modules-extra-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
Red Hat Enterprise Linux for Real Time (v. 8):
Source:
kernel-rt-4.18.0-348.12.2.rt7.143.el8_5.src.rpm
x86_64:
kernel-rt-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-core-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-core-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-devel-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-modules-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debuginfo-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-devel-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-modules-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
kernel-rt-modules-extra-4.18.0-348.12.2.rt7.143.el8_5.x86_64.rpm
These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-4155
https://access.redhat.com/security/cve/CVE-2022-0185
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
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