RedHat: RHSA-2023-0049:01 Moderate: grub2 security update | LinuxSe...
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: grub2 security update
Advisory ID:       RHSA-2023:0049-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:0049
Issue date:        2023-01-09
CVE Names:         CVE-2022-2601 CVE-2022-3775 
=====================================================================

1. Summary:

An update for grub2 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 BaseOS (v. 8) - aarch64, noarch, ppc64le, x86_64

3. 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.

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

5. 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

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 8):

Source:
grub2-2.02-142.el8_7.1.src.rpm

aarch64:
grub2-debuginfo-2.02-142.el8_7.1.aarch64.rpm
grub2-debugsource-2.02-142.el8_7.1.aarch64.rpm
grub2-efi-aa64-2.02-142.el8_7.1.aarch64.rpm
grub2-efi-aa64-cdboot-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-debuginfo-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-extra-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-extra-debuginfo-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-minimal-2.02-142.el8_7.1.aarch64.rpm
grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.aarch64.rpm

noarch:
grub2-common-2.02-142.el8_7.1.noarch.rpm
grub2-efi-aa64-modules-2.02-142.el8_7.1.noarch.rpm
grub2-efi-ia32-modules-2.02-142.el8_7.1.noarch.rpm
grub2-efi-x64-modules-2.02-142.el8_7.1.noarch.rpm
grub2-pc-modules-2.02-142.el8_7.1.noarch.rpm
grub2-ppc64le-modules-2.02-142.el8_7.1.noarch.rpm

ppc64le:
grub2-debuginfo-2.02-142.el8_7.1.ppc64le.rpm
grub2-debugsource-2.02-142.el8_7.1.ppc64le.rpm
grub2-ppc64le-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-debuginfo-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-extra-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-extra-debuginfo-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-minimal-2.02-142.el8_7.1.ppc64le.rpm
grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.ppc64le.rpm

x86_64:
grub2-debuginfo-2.02-142.el8_7.1.x86_64.rpm
grub2-debugsource-2.02-142.el8_7.1.x86_64.rpm
grub2-efi-ia32-2.02-142.el8_7.1.x86_64.rpm
grub2-efi-ia32-cdboot-2.02-142.el8_7.1.x86_64.rpm
grub2-efi-x64-2.02-142.el8_7.1.x86_64.rpm
grub2-efi-x64-cdboot-2.02-142.el8_7.1.x86_64.rpm
grub2-pc-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-debuginfo-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-efi-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-efi-debuginfo-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-extra-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-extra-debuginfo-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-minimal-2.02-142.el8_7.1.x86_64.rpm
grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.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-2022-2601
https://access.redhat.com/security/cve/CVE-2022-3775
https://access.redhat.com/security/updates/classification/#moderate

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-2023-0049:01 Moderate: grub2 security update

An update for grub2 is now available for Red Hat Enterprise Linux 8

Summary

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.

Solution

For details on how to apply this update, which includes the changesdescribed in this advisory, refer to:https://access.redhat.com/articles/11258

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

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: grub2-2.02-142.el8_7.1.src.rpm
aarch64: grub2-debuginfo-2.02-142.el8_7.1.aarch64.rpm grub2-debugsource-2.02-142.el8_7.1.aarch64.rpm grub2-efi-aa64-2.02-142.el8_7.1.aarch64.rpm grub2-efi-aa64-cdboot-2.02-142.el8_7.1.aarch64.rpm grub2-tools-2.02-142.el8_7.1.aarch64.rpm grub2-tools-debuginfo-2.02-142.el8_7.1.aarch64.rpm grub2-tools-extra-2.02-142.el8_7.1.aarch64.rpm grub2-tools-extra-debuginfo-2.02-142.el8_7.1.aarch64.rpm grub2-tools-minimal-2.02-142.el8_7.1.aarch64.rpm grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.aarch64.rpm
noarch: grub2-common-2.02-142.el8_7.1.noarch.rpm grub2-efi-aa64-modules-2.02-142.el8_7.1.noarch.rpm grub2-efi-ia32-modules-2.02-142.el8_7.1.noarch.rpm grub2-efi-x64-modules-2.02-142.el8_7.1.noarch.rpm grub2-pc-modules-2.02-142.el8_7.1.noarch.rpm grub2-ppc64le-modules-2.02-142.el8_7.1.noarch.rpm
ppc64le: grub2-debuginfo-2.02-142.el8_7.1.ppc64le.rpm grub2-debugsource-2.02-142.el8_7.1.ppc64le.rpm grub2-ppc64le-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-debuginfo-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-extra-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-extra-debuginfo-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-minimal-2.02-142.el8_7.1.ppc64le.rpm grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.ppc64le.rpm
x86_64: grub2-debuginfo-2.02-142.el8_7.1.x86_64.rpm grub2-debugsource-2.02-142.el8_7.1.x86_64.rpm grub2-efi-ia32-2.02-142.el8_7.1.x86_64.rpm grub2-efi-ia32-cdboot-2.02-142.el8_7.1.x86_64.rpm grub2-efi-x64-2.02-142.el8_7.1.x86_64.rpm grub2-efi-x64-cdboot-2.02-142.el8_7.1.x86_64.rpm grub2-pc-2.02-142.el8_7.1.x86_64.rpm grub2-tools-2.02-142.el8_7.1.x86_64.rpm grub2-tools-debuginfo-2.02-142.el8_7.1.x86_64.rpm grub2-tools-efi-2.02-142.el8_7.1.x86_64.rpm grub2-tools-efi-debuginfo-2.02-142.el8_7.1.x86_64.rpm grub2-tools-extra-2.02-142.el8_7.1.x86_64.rpm grub2-tools-extra-debuginfo-2.02-142.el8_7.1.x86_64.rpm grub2-tools-minimal-2.02-142.el8_7.1.x86_64.rpm grub2-tools-minimal-debuginfo-2.02-142.el8_7.1.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-2023:0049-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0049
Issued Date: : 2023-01-09
CVE Names: CVE-2022-2601 CVE-2022-3775

Topic

An update for grub2 is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, x86_64

Bugs Fixed

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

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