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

Synopsis:          Important: kernel security and bug fix update
Advisory ID:       RHSA-2023:4815-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4815
Issue date:        2023-08-29
CVE Names:         CVE-2023-2124 CVE-2023-3090 CVE-2023-35788 
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 8.2
Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications
Update Service, and Red Hat Enterprise Linux 8.2 Update Services for SAP
Solutions.

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 BaseOS AUS (v. 8.2) - noarch, x86_64
Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS TUS (v. 8.2) - noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: ipvlan: out-of-bounds write caused by unclear skb->cb
(CVE-2023-3090)

* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
(CVE-2023-35788)

* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)

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):

* Windows Server 2019 guest randomly pauses with "KVM: entry failed,
hardware error 0x80000021", RHEL 8.8GA (BZ#2211657)

* rbd: avoid fast-diff corruption in snapshot-based mirroring, RHEL 8.9
(BZ#2216772)

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/):

2187439 - CVE-2023-2124 kernel: OOB access in the Linux kernel's XFS subsystem
2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb

6. Package List:

Red Hat Enterprise Linux BaseOS AUS (v. 8.2):

Source:
kernel-4.18.0-193.113.1.el8_2.src.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm

x86_64:
bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm

Red Hat Enterprise Linux BaseOS E4S (v. 8.2):

Source:
kernel-4.18.0-193.113.1.el8_2.src.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm

ppc64le:
bpftool-4.18.0-193.113.1.el8_2.ppc64le.rpm
bpftool-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-core-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-cross-headers-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-core-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-devel-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-modules-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-devel-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-headers-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-modules-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-modules-extra-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-tools-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
kernel-tools-libs-4.18.0-193.113.1.el8_2.ppc64le.rpm
perf-4.18.0-193.113.1.el8_2.ppc64le.rpm
perf-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
python3-perf-4.18.0-193.113.1.el8_2.ppc64le.rpm
python3-perf-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm

x86_64:
bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm

Red Hat Enterprise Linux BaseOS TUS (v. 8.2):

Source:
kernel-4.18.0-193.113.1.el8_2.src.rpm

noarch:
kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm
kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm

x86_64:
bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm
bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-4.18.0-193.113.1.el8_2.x86_64.rpm
perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm
python3-perf-debuginfo-4.18.0-193.113.1.el8_2.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-2023-2124
https://access.redhat.com/security/cve/CVE-2023-3090
https://access.redhat.com/security/cve/CVE-2023-35788
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2023 Red Hat, Inc.
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RedHat: RHSA-2023-4815:01 Important: kernel

An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support, Red Hat Enterprise Linux 8.2 Telecommunications Update Service, and Red Hat Enterpri...

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
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):
* Windows Server 2019 guest randomly pauses with "KVM: entry failed, hardware error 0x80000021", RHEL 8.8GA (BZ#2211657)
* rbd: avoid fast-diff corruption in snapshot-based mirroring, RHEL 8.9 (BZ#2216772)



Summary


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.

References

https://access.redhat.com/security/cve/CVE-2023-2124 https://access.redhat.com/security/cve/CVE-2023-3090 https://access.redhat.com/security/cve/CVE-2023-35788 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS AUS (v. 8.2):
Source: kernel-4.18.0-193.113.1.el8_2.src.rpm
noarch: kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm
x86_64: bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm perf-4.18.0-193.113.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux BaseOS E4S (v. 8.2):
Source: kernel-4.18.0-193.113.1.el8_2.src.rpm
noarch: kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm
ppc64le: bpftool-4.18.0-193.113.1.el8_2.ppc64le.rpm bpftool-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-core-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-cross-headers-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-core-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-devel-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-modules-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-debuginfo-common-ppc64le-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-devel-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-headers-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-modules-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-modules-extra-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-tools-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm kernel-tools-libs-4.18.0-193.113.1.el8_2.ppc64le.rpm perf-4.18.0-193.113.1.el8_2.ppc64le.rpm perf-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm python3-perf-4.18.0-193.113.1.el8_2.ppc64le.rpm python3-perf-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
x86_64: bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm perf-4.18.0-193.113.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux BaseOS TUS (v. 8.2):
Source: kernel-4.18.0-193.113.1.el8_2.src.rpm
noarch: kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm kernel-doc-4.18.0-193.113.1.el8_2.noarch.rpm
x86_64: bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-cross-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-core-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debug-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-debuginfo-common-x86_64-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-devel-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-headers-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-modules-extra-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm kernel-tools-libs-4.18.0-193.113.1.el8_2.x86_64.rpm perf-4.18.0-193.113.1.el8_2.x86_64.rpm perf-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-4.18.0-193.113.1.el8_2.x86_64.rpm python3-perf-debuginfo-4.18.0-193.113.1.el8_2.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/


Severity
Advisory ID: RHSA-2023:4815-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4815
Issued Date: : 2023-08-29
CVE Names: CVE-2023-2124 CVE-2023-3090 CVE-2023-35788

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.2Advanced Update Support, Red Hat Enterprise Linux 8.2 TelecommunicationsUpdate Service, and Red Hat Enterprise Linux 8.2 Update Services for SAPSolutions.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.


Topic


 

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS AUS (v. 8.2) - noarch, x86_64

Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - noarch, ppc64le, x86_64

Red Hat Enterprise Linux BaseOS TUS (v. 8.2) - noarch, x86_64


Bugs Fixed

2187439 - CVE-2023-2124 kernel: OOB access in the Linux kernel's XFS subsystem

2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()

2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb


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