Security
Headlines
HeadlinesLatestCVEs

Headline

RHSA-2022:8941: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

Related CVEs:

  • CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region
  • CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()
Red Hat Security Data
#vulnerability#web#linux#red_hat#nodejs#js#java#kubernetes#aws

Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Containers
  • Support Cases

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Virtualization
  • Red Hat Identity Management
  • Red Hat Directory Server
  • Red Hat Certificate System
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Update Infrastructure
  • Red Hat Insights
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat CloudForms
  • Red Hat OpenStack Platform
  • Red Hat OpenShift Container Platform
  • Red Hat OpenShift Data Science
  • Red Hat OpenShift Online
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat Single Sign On
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Thorntail
  • Red Hat build of Eclipse Vert.x
  • Red Hat build of OpenJDK
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Process Automation
  • Red Hat Process Automation Manager
  • Red Hat Decision Manager

All Products

Issued:

2022-12-13

Updated:

2022-12-13

RHSA-2022:8941 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel-rt security and bug fix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.

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.

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: KVM: cmpxchg_gpte can write to pfns outside the userspace region (CVE-2022-1158)
  • kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() (CVE-2022-2639)

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.z22 Batch (BZ#2138929)

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.

Affected Products

  • Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.2 x86_64
  • Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.2 x86_64

Fixes

  • BZ - 2069793 - CVE-2022-1158 kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region
  • BZ - 2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

Red Hat Enterprise Linux for Real Time - Telecommunications Update Service 8.2

SRPM

kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.src.rpm

SHA-256: 353d29e0a2250bcf9d43124a37db965847a0b1a190299c09fa5471c7c15178dc

x86_64

kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 5ae49a2d5d6b8359e26310be3533b177a17f78b45c7736872885ef8ec8e094b8

kernel-rt-core-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 31d2ea946461bea7faa91ccc174e81f3022b652564a8c09ebf5e0e48f555fa37

kernel-rt-debug-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 55c079c1e54e12d82ae8ff9a8f8de73e985fcad005912d50772699097a9b3f97

kernel-rt-debug-core-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 921c4701fe70aeb5853dbc29f3aab95632dfb1047aa0b735f5a439c9d3fe6b01

kernel-rt-debug-debuginfo-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 84b17d9f63129ff3e7358dc3d467d00e5b5fbfa774b77f6a503fed189b493778

kernel-rt-debug-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: a336a75786ae303febd05a9d8778260a258361ba517ef95b1fa7b28f561cf30a

kernel-rt-debug-modules-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 8c8c15742e4f8b5494c761fa367c312bb98cb11ef649a8f7d506d1c38a66931e

kernel-rt-debug-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: b3fc5cdf215be5004cfe0bc05d77392ac0af8916bdfb80b7139c6faefabd9160

kernel-rt-debuginfo-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 9aea4dff50795fc2541d30ab450a13a932627c665ac139c1d416afa0219b093a

kernel-rt-debuginfo-common-x86_64-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 037b91b3d38e8d6fabe6eb104a189ca37b06404115da5239c6e6ad08b5bb6f85

kernel-rt-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 178ee210ec1ac93679b4a353d209cc2dff0fb0026ff91620a4dc5d51bea3830d

kernel-rt-modules-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: f698c160f57b2eb8cebc440a9a21b1b73349b4e082decb9a821069d211f11ba1

kernel-rt-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: b6b1eab588fec06a0534f8b4e2ecdf0c49d4e06bf0f5e5d10c38cf9c69cf18d3

Red Hat Enterprise Linux for Real Time for NFV - Telecommunications Update Service 8.2

SRPM

kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.src.rpm

SHA-256: 353d29e0a2250bcf9d43124a37db965847a0b1a190299c09fa5471c7c15178dc

x86_64

kernel-rt-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 5ae49a2d5d6b8359e26310be3533b177a17f78b45c7736872885ef8ec8e094b8

kernel-rt-core-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 31d2ea946461bea7faa91ccc174e81f3022b652564a8c09ebf5e0e48f555fa37

kernel-rt-debug-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 55c079c1e54e12d82ae8ff9a8f8de73e985fcad005912d50772699097a9b3f97

kernel-rt-debug-core-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 921c4701fe70aeb5853dbc29f3aab95632dfb1047aa0b735f5a439c9d3fe6b01

kernel-rt-debug-debuginfo-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 84b17d9f63129ff3e7358dc3d467d00e5b5fbfa774b77f6a503fed189b493778

kernel-rt-debug-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: a336a75786ae303febd05a9d8778260a258361ba517ef95b1fa7b28f561cf30a

kernel-rt-debug-kvm-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 5fff54f0c84b901e818bb74298a685ab24708b6cbf764c3827a040bf2d1ffa6b

kernel-rt-debug-modules-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 8c8c15742e4f8b5494c761fa367c312bb98cb11ef649a8f7d506d1c38a66931e

kernel-rt-debug-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: b3fc5cdf215be5004cfe0bc05d77392ac0af8916bdfb80b7139c6faefabd9160

kernel-rt-debuginfo-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 9aea4dff50795fc2541d30ab450a13a932627c665ac139c1d416afa0219b093a

kernel-rt-debuginfo-common-x86_64-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 037b91b3d38e8d6fabe6eb104a189ca37b06404115da5239c6e6ad08b5bb6f85

kernel-rt-devel-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: 178ee210ec1ac93679b4a353d209cc2dff0fb0026ff91620a4dc5d51bea3830d

kernel-rt-kvm-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: d5eae2f35fff42ba4ebc5a3bdc80b9d57e26b9f8ca2b864ba40842f8f9cc0f8f

kernel-rt-modules-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: f698c160f57b2eb8cebc440a9a21b1b73349b4e082decb9a821069d211f11ba1

kernel-rt-modules-extra-4.18.0-193.95.1.rt13.146.el8_2.x86_64.rpm

SHA-256: b6b1eab588fec06a0534f8b4e2ecdf0c49d4e06bf0f5e5d10c38cf9c69cf18d3

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

Related news

CVE-2022-46756: DSA-2022-335: Dell VxRail Security Update for Multiple Third-Party Component Vulnerabilities

Dell VxRail, versions prior to 7.0.410, contain a Container Escape Vulnerability. A local high-privileged attacker could potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the container's underlying OS. Exploitation may lead to a system take over by an attacker.

Red Hat Security Advisory 2023-0058-01

Red Hat Security Advisory 2023-0058-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-9111-01

Red Hat Security Advisory 2022-9111-01 - Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.9.54. Issues addressed include a code execution vulnerability.

Red Hat Security Advisory 2022-9082-01

Red Hat Security Advisory 2022-9082-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include buffer overflow, out of bounds write, and privilege escalation vulnerabilities.

RHSA-2022:9082: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() * CVE-2022-2959: kernel: watch queue race condition can lead to privilege escalation * CVE-2022-43945: kernel: nfsd buffer overflow by RP...

RHSA-2022:9040: Red Hat Security Advisory: Red Hat Advanced Cluster Management 2.6.3 security update

Red Hat Advanced Cluster Management for Kubernetes 2.6.3 General Availability release images, which provide security updates, fix bugs, and update container images. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-3517: nodejs-minimatch: ReDoS via the braceExpand function * CVE-2022-41912: crewjam/saml: Authentication bypass when processing SAML responses containing multiple Assertion elements

Red Hat Security Advisory 2022-8973-01

Red Hat Security Advisory 2022-8973-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include buffer overflow, code execution, memory leak, out of bounds write, and privilege escalation vulnerabilities.

Red Hat Security Advisory 2022-8941-01

Red Hat Security Advisory 2022-8941-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-8940-01

Red Hat Security Advisory 2022-8940-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds write vulnerability.

RHSA-2022:8974: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size() * CVE-2022-2959: kernel: watch queue race condition can lead to privilege escalation * CVE-2022-21123: hw: cpu: incomplete clean-up of multi...

RHSA-2022:8989: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

Red Hat Security Advisory 2022-8831-01

Red Hat Security Advisory 2022-8831-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-8809-01

Red Hat Security Advisory 2022-8809-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-8809-01

Red Hat Security Advisory 2022-8809-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds write vulnerability.

RHSA-2022:8831: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

RHSA-2022:8831: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

RHSA-2022:8809: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

RHSA-2022:8809: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

Red Hat Security Advisory 2022-8767-01

Red Hat Security Advisory 2022-8767-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-8765-01

Red Hat Security Advisory 2022-8765-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include an out of bounds write vulnerability.

Red Hat Security Advisory 2022-8768-01

Red Hat Security Advisory 2022-8768-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include an out of bounds write vulnerability.

RHSA-2022:8765: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

RHSA-2022:8767: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2639: kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()

RHSA-2022:8685: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region

RHSA-2022:8686: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-1158: kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region

RHSA-2022:8267: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 9. 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2020-36516: kernel: off-path attacker may inject data or terminate victim's TCP session * CVE-2021-3640: kernel: use-after-free vulnerability in function sco_sock_sendmsg() * CVE-2022-0168: kernel: smb2_ioctl_query_info NULL pointer dereference * CVE-2022-0617: kernel: NULL pointer dereference in udf_expand_file_adinicbdue() during writeback * CVE-2022-0854: ...

CVE-2022-2639: Invalid Bug ID

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Ubuntu Security Notice USN-5469-1

Ubuntu Security Notice 5469-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5468-1

Ubuntu Security Notice 5468-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5467-1

Ubuntu Security Notice 5467-1 - It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A privileged attacker could use this to bypass UEFI Secure Boot restrictions. Aaron Adams discovered that the netfilter subsystem in the Linux kernel did not properly handle the removal of stateful expressions in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice USN-5416-1

Ubuntu Security Notice 5416-1 - Qiuhao Li, Gaoning Pan and Yongkang Jia discovered that the KVM implementation in the Linux kernel did not properly perform guest page table updates in some situations. An attacker in a guest vm could possibly use this to crash the host OS. It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. A local attacker could possibly use this to cause a denial of service.