exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Red Hat Security Advisory 2022-6437-01

Red Hat Security Advisory 2022-6437-01
Posted Sep 13, 2022
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2022-6437-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2022-21123, CVE-2022-21125, CVE-2022-21166
SHA-256 | f3f264785925bce1d512b2444039369aa6962f148befe58b07a7a29e2cc12554

Red Hat Security Advisory 2022-6437-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

====================================================================
Red Hat Security Advisory

Synopsis: Moderate: kernel-rt security and bug fix update
Advisory ID: RHSA-2022:6437-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:6437
Issue date: 2022-09-13
CVE Names: CVE-2022-21123 CVE-2022-21125 CVE-2022-21166
====================================================================
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 Moderate. 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 (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (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):

* Incomplete cleanup of multi-core shared buffers (aka SBDR)
(CVE-2022-21123)

* Incomplete cleanup of microarchitectural fill buffers (aka SBDS)
(CVE-2022-21125)

* Incomplete cleanup in specific special register write operations (aka
DRPW) (CVE-2022-21166)

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):

* The latest RHEL 8.6.z3 kernel changes need to be merged into the RT
source tree to keep source parity between the two kernels. (BZ#2111112)

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/):

2090237 - CVE-2022-21123 hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR)
2090240 - CVE-2022-21125 hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS)
2090241 - CVE-2022-21166 hw: cpu: Incomplete cleanup in specific special register write operations (aka DRPW)

6. Package List:

Red Hat Enterprise Linux Real Time for NFV (v. 8):

Source:
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm

x86_64:
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-kvm-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm

Red Hat Enterprise Linux Real Time (v. 8):

Source:
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.src.rpm

x86_64:
kernel-rt-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-core-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debuginfo-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-devel-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-modules-4.18.0-372.26.1.rt7.183.el8_6.x86_64.rpm
kernel-rt-modules-extra-4.18.0-372.26.1.rt7.183.el8_6.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-2022-21123
https://access.redhat.com/security/cve/CVE-2022-21125
https://access.redhat.com/security/cve/CVE-2022-21166
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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t/FA
-----END PGP SIGNATURE-----
--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://listman.redhat.com/mailman/listinfo/rhsa-announce
Login or Register to add favorites

File Archive:

June 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jun 1st
    0 Files
  • 2
    Jun 2nd
    0 Files
  • 3
    Jun 3rd
    18 Files
  • 4
    Jun 4th
    21 Files
  • 5
    Jun 5th
    0 Files
  • 6
    Jun 6th
    57 Files
  • 7
    Jun 7th
    6 Files
  • 8
    Jun 8th
    0 Files
  • 9
    Jun 9th
    0 Files
  • 10
    Jun 10th
    12 Files
  • 11
    Jun 11th
    27 Files
  • 12
    Jun 12th
    38 Files
  • 13
    Jun 13th
    16 Files
  • 14
    Jun 14th
    14 Files
  • 15
    Jun 15th
    0 Files
  • 16
    Jun 16th
    0 Files
  • 17
    Jun 17th
    16 Files
  • 18
    Jun 18th
    26 Files
  • 19
    Jun 19th
    15 Files
  • 20
    Jun 20th
    18 Files
  • 21
    Jun 21st
    8 Files
  • 22
    Jun 22nd
    0 Files
  • 23
    Jun 23rd
    0 Files
  • 24
    Jun 24th
    0 Files
  • 25
    Jun 25th
    0 Files
  • 26
    Jun 26th
    0 Files
  • 27
    Jun 27th
    0 Files
  • 28
    Jun 28th
    0 Files
  • 29
    Jun 29th
    0 Files
  • 30
    Jun 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close