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Red Hat Security Advisory 2022-8800-01

Red Hat Security Advisory 2022-8800-01 - 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. Issues addressed include buffer overflow, bypass, and out of bounds write vulnerabilities.

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

Synopsis: Moderate: grub2 security update
Advisory ID: RHSA-2022:8800-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:8800
Issue date: 2022-12-06
CVE Names: CVE-2022-2601 CVE-2022-3775
====================================================================

  1. Summary:

An update for grub2 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 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.

  1. Relevant releases/architectures:

Red Hat Enterprise Linux BaseOS AUS (v. 8.2) - aarch64, noarch, x86_64
Red Hat Enterprise Linux BaseOS E4S (v. 8.2) - aarch64, noarch, ppc64le, x86_64
Red Hat Enterprise Linux BaseOS TUS (v. 8.2) - aarch64, noarch, x86_64

  1. Description:

The grub2 packages provide version 2 of the Grand Unified Boot Loader
(GRUB), 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.

Security Fix(es):

  • grub2: Buffer overflow in grub_font_construct_glyph() can lead to
    out-of-bound write and possible secure boot bypass (CVE-2022-2601)

  • grub2: Heap based out-of-bounds write when redering certain unicode
    sequences (CVE-2022-3775)

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.

  1. 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

  1. Bugs fixed (https://bugzilla.redhat.com/):

2112975 - CVE-2022-2601 grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass
2138880 - CVE-2022-3775 grub2: Heap based out-of-bounds write when redering certain unicode sequences

  1. Package List:

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

Source:
grub2-2.02-87.el8_2.11.src.rpm

aarch64:
grub2-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-debugsource-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-cdboot-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.aarch64.rpm

noarch:
grub2-common-2.02-87.el8_2.11.noarch.rpm
grub2-efi-aa64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-ia32-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-x64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-pc-modules-2.02-87.el8_2.11.noarch.rpm
grub2-ppc64le-modules-2.02-87.el8_2.11.noarch.rpm

x86_64:
grub2-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-debugsource-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-pc-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.x86_64.rpm

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

Source:
grub2-2.02-87.el8_2.11.src.rpm

aarch64:
grub2-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-debugsource-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-cdboot-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.aarch64.rpm

noarch:
grub2-common-2.02-87.el8_2.11.noarch.rpm
grub2-efi-aa64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-ia32-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-x64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-pc-modules-2.02-87.el8_2.11.noarch.rpm
grub2-ppc64le-modules-2.02-87.el8_2.11.noarch.rpm

ppc64le:
grub2-debuginfo-2.02-87.el8_2.11.ppc64le.rpm
grub2-debugsource-2.02-87.el8_2.11.ppc64le.rpm
grub2-ppc64le-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-extra-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-minimal-2.02-87.el8_2.11.ppc64le.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.ppc64le.rpm

x86_64:
grub2-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-debugsource-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-pc-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.x86_64.rpm

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

Source:
grub2-2.02-87.el8_2.11.src.rpm

aarch64:
grub2-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-debugsource-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-2.02-87.el8_2.11.aarch64.rpm
grub2-efi-aa64-cdboot-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.aarch64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.aarch64.rpm

noarch:
grub2-common-2.02-87.el8_2.11.noarch.rpm
grub2-efi-aa64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-ia32-modules-2.02-87.el8_2.11.noarch.rpm
grub2-efi-x64-modules-2.02-87.el8_2.11.noarch.rpm
grub2-pc-modules-2.02-87.el8_2.11.noarch.rpm
grub2-ppc64le-modules-2.02-87.el8_2.11.noarch.rpm

x86_64:
grub2-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-debugsource-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-ia32-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-2.02-87.el8_2.11.x86_64.rpm
grub2-efi-x64-cdboot-2.02-87.el8_2.11.x86_64.rpm
grub2-pc-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-efi-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-extra-debuginfo-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-2.02-87.el8_2.11.x86_64.rpm
grub2-tools-minimal-debuginfo-2.02-87.el8_2.11.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-2601
https://access.redhat.com/security/cve/CVE-2022-3775
https://access.redhat.com/security/updates/classification/#moderate

  1. Contact:

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

Copyright 2022 Red Hat, Inc.
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Red Hat Security Advisory 2022-8494-01 - 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. Issues addressed include buffer overflow, bypass, and out of bounds write vulnerabilities.

Debian Security Advisory 5280-1

Debian Linux Security Advisory 5280-1 - Several issues were found in GRUB2's font handling code, which could result in crashes and potentially execution of arbitrary code. These could lead to by-pass of UEFI Secure Boot on affected systems.

Debian Security Advisory 5280-1

Debian Linux Security Advisory 5280-1 - Several issues were found in GRUB2's font handling code, which could result in crashes and potentially execution of arbitrary code. These could lead to by-pass of UEFI Secure Boot on affected systems.

RHSA-2022:8494: Red Hat Security Advisory: grub2 security update

An update for grub2 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 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-2022-2601: grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass * CVE-2022-3775: grub2: Heap based out-of-bounds write when redering certain unicode sequences

RHSA-2022:8494: Red Hat Security Advisory: grub2 security update

An update for grub2 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 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-2022-2601: grub2: Buffer overflow in grub_font_construct_glyph() can lead to out-of-bound write and possible secure boot bypass * CVE-2022-3775: grub2: Heap based out-of-bounds write when redering certain unicode sequences

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