Security update for grub2

Announcement ID: SUSE-SU-2022:4143-1
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 High Performance Computing 12 SP3
  • SUSE Linux Enterprise Server 12 SP3
  • SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3

An update that solves two vulnerabilities can now be installed.

Description:

This update for grub2 fixes the following issues:

Security Fixes:

  • CVE-2022-2601: Fixed buffer overflow in grub_font_construct_glyph (bsc#1205178).
  • CVE-2022-3775: Fixed integer underflow in blit_comb() (bsc#1205182).

Other:

  • Bump upstream SBAT generation to 3

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 Server 12 SP3 BCL 12-SP3
    zypper in -t patch SUSE-SLE-SERVER-12-SP3-BCL-2022-4143=1

Package List:

  • SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 (x86_64)
    • grub2-x86_64-xen-2.02-142.1
    • grub2-i386-pc-2.02-142.1
    • grub2-2.02-142.1
    • grub2-debuginfo-2.02-142.1
    • grub2-x86_64-efi-2.02-142.1
    • grub2-debugsource-2.02-142.1
  • SUSE Linux Enterprise Server 12 SP3 BCL 12-SP3 (noarch)
    • grub2-snapper-plugin-2.02-142.1
    • grub2-systemd-sleep-plugin-2.02-142.1

References: