Protect yourself against future threats.
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2024.2539
grub2 security update
26 April 2024
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: grub2
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-2601
Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:2002
Comment: CVSS (Max): 8.2 CVE-2022-2601 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- --------------------------BEGIN INCLUDED TEXT--------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Moderate: grub2 security update
Advisory ID: RHSA-2024:2002
Product: Red Hat Enterprise Linux Client (v. 7)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:2002
Issue date: 2024-04-23
CVE Names: CVE-2022-2601
=====================================================================
1. Summary:
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
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 Client (v. 7) - x86_64, noarch, ppc64le, ppc64
Red Hat Enterprise Linux Server (v. 7) - x86_64, noarch, ppc64le, ppc64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64, noarch, ppc64le, ppc64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64, noarch, ppc64le, ppc64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64
Red Hat Enterprise Linux Server Optional (v. 7) - x86_64, noarch, ppc64le, ppc64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64, noarch, ppc64le,
ppc64
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)
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, 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
6. Package List:
Red Hat Enterprise Linux Client (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux Server (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux Workstation (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux Client Optional (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux Server Optional (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7)
ppc64:
grub2-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-ppc64-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64.rpm
ppc64le:
grub2-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-ppc64le-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.ppc64le.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.ppc64le.rpm
Source:
grub2-1:2.02-0.87.el7_9.14.src.rpm
x86_64:
grub2-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-debuginfo-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-ia32-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-efi-x64-cdboot-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-pc-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-extra-1:2.02-0.87.el7_9.14.x86_64.rpm
grub2-tools-minimal-1:2.02-0.87.el7_9.14.x86_64.rpm
noarch:
grub2-common-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-aa64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-ia32-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-efi-x64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-pc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64-modules-1:2.02-0.87.el7_9.14.noarch.rpm
grub2-ppc64le-modules-1:2.02-0.87.el7_9.14.noarch.rpm
7. References:
https://access.redhat.com/security/cve/CVE-2022-2601
https://access.redhat.com/security/updates/classification/#moderate
- --------------------------END INCLUDED TEXT----------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================