Security update for grub2

Announcement ID: SUSE-SU-2023:1701-1
Rating: important
References:
Cross-References:
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 security 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 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-debuginfo-2.04-150300.3.8.1
    • grub2-2.04-150300.3.8.1
    • grub2-debugsource-2.04-150300.3.8.1
  • SUSE Linux Enterprise Micro 5.1 (noarch)
    • grub2-i386-pc-2.04-150300.3.8.1
    • 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-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: