RHSA-2022:5099: Red Hat Security Advisory: grub2, mokutil, shim, and shim-unsigned-x64 security update

This is the third part of Vincent Danen’s “Patch management needs a revolution” series.Patch management needs a revolution, part 1: Surveying cybersecurity’s lineagePatch management needs a revolution, part 2: The flood of vulnerabilitiesVulnerability ratings are the foundation for a good risk-based vulnerability management program, especially if they’re from a trusted party. Recently I was discussing this topic with a customer and they said they practiced Zero Trust, as if to explain why they could not trust our ratings. The irony, however, is that they did use National Vulnerabilit

An issue exists in SoftIron HyperCloud where compute nodes may come online immediately without following the correct initialization process.  In this instance, workloads may be scheduled on these nodes and deploy to a failed or erroneous state, which impacts the availability of these workloads that may be deployed during this time window. This issue impacts HyperCloud versions from 2.0.0 to before 2.0.3.

Ubuntu Security Notice 6355-1 - Daniel Axtens discovered that specially crafted images could cause a heap-based out-of-bonds write. A local attacker could possibly use this to circumvent secure boot protections. Daniel Axtens discovered that specially crafted images could cause out-of-bonds read and write. A local attacker could possibly use this to circumvent secure boot protections. Daniel Axtens discovered that specially crafted images could cause buffer underwrite which allows arbitrary data to be written to a heap. A local attacker could possibly use this to circumvent secure boot protections.

There's a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.

Dell PowerStore versions prior to 3.5 contain an improper verification of cryptographic signature vulnerability. An attacker can trick a high privileged user to install a malicious binary by bypassing the existing cryptographic signature checks

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.

Dell EMC Metro node, Version(s) prior to 7.1, contain a Code Injection Vulnerability. An authenticated nonprivileged attacker could potentially exploit this vulnerability, leading to the execution of arbitrary OS commands on the application.

Hello everyone! Great news for my open source Scanvus project! You can now perform vulnerability checks on Linux hosts and docker images not only using the Vulners.com API, but also with the Vulns.io VM API. It’s especially nice that all the code to support the new API was written and contributed by colleagues from Vulns.io. […]

An update for grub2 is now available for Red Hat Enterprise Linux 7. 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-2022-28733: grub2: Integer underflow in grub_net_recv_ip4_packets

Gentoo Linux Security Advisory 202209-12 - Multiple vulnerabilities have been discovered in GRUB, the worst of which may allow for secureboot bypass. Versions less than 2.06 are affected.

Red Hat Security Advisory 2022-5069-01 - 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 4.11.0. Issues addressed include code execution, cross site scripting, denial of service, information leakage, and traversal vulnerabilities.

Red Hat OpenShift Container Platform release 4.11.0 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.11. 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-2021-23566: nanoid: Information disclosure via valueOf() function * CVE-2021-23648: sanitize-url: XSS * CVE-2021-41190: opencontainers: OCI manifest and index parsing confusion * CVE-2021-44906:...

An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 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.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-2022-27666: kernel: buffer overflow in IPsec ESP transformation code * CVE-2022-28733: grub2: Integer underflow in grub_net_recv_ip4_packets

Red Hat Advanced Cluster Management for Kubernetes 2.5.1 General Availability release images, which fix security issues and bugs. 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 links 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-2022-24450: nats-server: misusing the "dynamically provisioned sandbox accounts" feature authenticated user can obtain the privileges of the System account

A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12.

Red Hat Security Advisory 2022-5392-01 - Red Hat Advanced Cluster Management for Kubernetes 2.3.11 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which resolve security issues and fix several bugs. Issues addressed include a traversal vulnerability.

Red Hat Advanced Cluster Management for Kubernetes 2.3.11 general availability release images, which provide security updates and bug fixes. 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 links 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-2022-0235: node-fetch: exposure of sensitive information to an unauthorized actor * CVE-2022-0536: follow-redirects: Exposure of Sensitive Information via Authorization Header leak * CVE-2022-21803: nconf: Prototype pollution in memory store * CVE-2022-23806: golang: crypto/elliptic IsOnCurv...

Red Hat Security Advisory 2022-5201-01 - Red Hat Advanced Cluster Management for Kubernetes 2.4.5 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. This advisory contains the container images for Red Hat Advanced Cluster Management for Kubernetes, which apply security fixes and fix several bugs. Issues addressed include a traversal vulnerability.

Red Hat Advanced Cluster Management for Kubernetes 2.4.5 General Availability release images, which fix bugs and update container images. 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 links 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-2021-43565: golang.org/x/crypto: empty plaintext packet causes panic * CVE-2022-21803: nconf: Prototype pollution in memory store * CVE-2022-23806: golang: crypto/elliptic IsOnCurve returns true for invalid field elements * CVE-2022-24450: nats-server: misusing the "dynamically provisioned sand...

Red Hat Security Advisory 2022-5099-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-5100-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-5095-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-5096-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

Red Hat Security Advisory 2022-5098-01 - The grub2 packages provide version 2 of the Grand Unified Boot Loader, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures, and hardware devices. The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments. Issues addressed include buffer overflow, out of bounds write, and use-after-free vulnerabilities.

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.2 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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.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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: Integer underflow ...

An update for grub2, mokutil, shim, and shim-unsigned-x64 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733:...

An update for grub2, mokutil, and shim is now available for Red Hat Enterprise Linux 8.1 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-2021-3695: grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap * CVE-2021-3696: grub2: Crafted PNG image may lead to out-of-bound write during huffman table handling * CVE-2021-3697: grub2: Crafted JPEG image can lead to buffer underflow write in the heap * CVE-2022-28733: grub2: I...