SUSE-SU-2023:1701-1: important: Security update for grub2

[sle-security-updates at lists.suse.com]

# Security update for grub2

Announcement ID: SUSE-SU-2023:1701-1  
Rating: important  
References:

  * #1205178
  * #1205182
  * #1205200
  * #1205554
  * #1209188
  * #1209829

  
Cross-References:

  * CVE-2022-2601
  * CVE-2022-3775

  
CVSS scores:

  * CVE-2022-2601 ( SUSE ):  6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-2601 ( NVD ):  8.6 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
  * CVE-2022-3775 ( SUSE ):  6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
  * CVE-2022-3775 ( NVD ):  7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.1

  
  
An update that solves two vulnerabilities, contains one feature and has four
fixes can now be installed.

## Description:

This security update of grub2 fixes the following issues:

  * CVE-2022-2601: Fixed buffer overflow in grub_font_construct_glyph
    (bsc#1205178).
  * CVE-2022-3775: Fixed integer underflow in blit_comb() (bsc#1205182).
  * Bump upstream SBAT generation to 3

  * rebuild the package with the new secure boot key (bsc#1209188).

Other:

  * Remove zfs modules (bsc#1205554)
  * Make grub.cfg invariant to efi and legacy platforms (bsc#1205200)

## Patch Instructions:

To install this SUSE Important update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Micro 5.1  
    zypper in -t patch SUSE-SUSE-MicroOS-5.1-2023-1701=1

## Package List:

  * SUSE Linux Enterprise Micro 5.1 (aarch64 s390x x86_64)
    * grub2-debugsource-2.04-150300.3.8.1
    * grub2-2.04-150300.3.8.1
    * grub2-debuginfo-2.04-150300.3.8.1
  * SUSE Linux Enterprise Micro 5.1 (noarch)
    * grub2-x86_64-xen-2.04-150300.3.8.1
    * grub2-x86_64-efi-2.04-150300.3.8.1
    * grub2-arm64-efi-2.04-150300.3.8.1
    * grub2-i386-pc-2.04-150300.3.8.1
    * grub2-snapper-plugin-2.04-150300.3.8.1
  * SUSE Linux Enterprise Micro 5.1 (s390x)
    * grub2-s390x-emu-2.04-150300.3.8.1

## References:

  * https://www.suse.com/security/cve/CVE-2022-2601.html
  * https://www.suse.com/security/cve/CVE-2022-3775.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1205178
  * https://bugzilla.suse.com/show_bug.cgi?id=1205182
  * https://bugzilla.suse.com/show_bug.cgi?id=1205200
  * https://bugzilla.suse.com/show_bug.cgi?id=1205554
  * https://bugzilla.suse.com/show_bug.cgi?id=1209188
  * https://bugzilla.suse.com/show_bug.cgi?id=1209829
  * https://jira.suse.com/browse/PED-2951

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