Security update for grub2

Announcement ID:	SUSE-SU-2021:0681-1
Rating:	important
References:	bsc#1175970 bsc#1176711 bsc#1177883 bsc#1179264 bsc#1179265 bsc#1182057 bsc#1182262 bsc#1182263
Cross-References:	CVE-2020-14372 CVE-2020-25632 CVE-2020-25647 CVE-2020-27749 CVE-2020-27779 CVE-2021-20225 CVE-2021-20233
CVSS scores:	CVE-2020-14372 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-14372 ( NVD ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-25632 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-25632 ( NVD ): 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-25647 ( SUSE ): 7.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2020-25647 ( NVD ): 7.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVE-2020-27749 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-27749 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2020-27779 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2020-27779 ( NVD ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2021-20225 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2021-20225 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVE-2021-20233 ( SUSE ): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H CVE-2021-20233 ( NVD ): 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise High Performance Computing 12 SP4 SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP4 SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP4 SUSE Linux Enterprise Server for SAP Applications 12 SP5 SUSE OpenStack Cloud 9 SUSE OpenStack Cloud Crowbar 9

An update that solves seven vulnerabilities and has one security fix can now be installed.

Description:

This update for grub2 fixes the following issues:

grub2 now implements the new "SBAT" method for SHIM based secure boot revocation. (bsc#1182057)

Following security issues are fixed that can violate secure boot constraints:

• CVE-2020-25632: Fixed a use-after-free in rmmod command (bsc#1176711)
• CVE-2020-25647: Fixed an out-of-bound write in grub_usb_device_initialize() (bsc#1177883)
• CVE-2020-27749: Fixed a stack buffer overflow in grub_parser_split_cmdline (bsc#1179264)
• CVE-2020-27779, CVE-2020-14372: Disallow cutmem and acpi commands in secure boot mode (bsc#1179265 bsc#1175970)
• CVE-2021-20225: Fixed a heap out-of-bounds write in short form option parser (bsc#1182262)
• CVE-2021-20233: Fixed a heap out-of-bound write due to mis-calculation of space required for quoting (bsc#1182263)

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 OpenStack Cloud 9
  zypper in -t patch SUSE-OpenStack-Cloud-9-2021-681=1
• SUSE OpenStack Cloud Crowbar 9
  zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2021-681=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4
  zypper in -t patch SUSE-SLE-SAP-12-SP4-2021-681=1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-ESPOS-2021-681=1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4
  zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2021-681=1
• SUSE Linux Enterprise High Performance Computing 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-681=1
• SUSE Linux Enterprise Server 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-681=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5
  zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-681=1

Package List:

• SUSE OpenStack Cloud 9 (x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-i386-pc-2.02-12.47.1
  • grub2-2.02-12.47.1
  • grub2-debuginfo-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE OpenStack Cloud 9 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE OpenStack Cloud Crowbar 9 (x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-i386-pc-2.02-12.47.1
  • grub2-2.02-12.47.1
  • grub2-debuginfo-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE OpenStack Cloud Crowbar 9 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (ppc64le x86_64)
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP4 (x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64 x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (aarch64)
  • grub2-arm64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 ESPOS 12-SP4 (x86_64)
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 ppc64le s390x x86_64)
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64)
  • grub2-arm64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (aarch64 s390x x86_64)
  • grub2-debugsource-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (s390x)
  • grub2-s390x-emu-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP4 LTSS 12-SP4 (x86_64)
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (aarch64 x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (aarch64)
  • grub2-arm64-efi-2.02-12.47.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise High Performance Computing 12 SP5 (x86_64)
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (aarch64 ppc64le s390x x86_64)
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (aarch64)
  • grub2-arm64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (aarch64 s390x x86_64)
  • grub2-debugsource-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (s390x)
  • grub2-s390x-emu-2.02-12.47.1
• SUSE Linux Enterprise Server 12 SP5 (x86_64)
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (ppc64le x86_64)
  • grub2-debuginfo-2.02-12.47.1
  • grub2-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (ppc64le)
  • grub2-powerpc-ieee1275-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (noarch)
  • grub2-snapper-plugin-2.02-12.47.1
  • grub2-x86_64-xen-2.02-12.47.1
  • grub2-systemd-sleep-plugin-2.02-12.47.1
• SUSE Linux Enterprise Server for SAP Applications 12 SP5 (x86_64)
  • grub2-debugsource-2.02-12.47.1
  • grub2-i386-pc-2.02-12.47.1
  • grub2-x86_64-efi-2.02-12.47.1

References:

• https://www.suse.com/security/cve/CVE-2020-14372.html
• https://www.suse.com/security/cve/CVE-2020-25632.html
• https://www.suse.com/security/cve/CVE-2020-25647.html
• https://www.suse.com/security/cve/CVE-2020-27749.html
• https://www.suse.com/security/cve/CVE-2020-27779.html
• https://www.suse.com/security/cve/CVE-2021-20225.html
• https://www.suse.com/security/cve/CVE-2021-20233.html
• https://bugzilla.suse.com/show_bug.cgi?id=1175970
• https://bugzilla.suse.com/show_bug.cgi?id=1176711
• https://bugzilla.suse.com/show_bug.cgi?id=1177883
• https://bugzilla.suse.com/show_bug.cgi?id=1179264
• https://bugzilla.suse.com/show_bug.cgi?id=1179265
• https://bugzilla.suse.com/show_bug.cgi?id=1182057
• https://bugzilla.suse.com/show_bug.cgi?id=1182262
• https://bugzilla.suse.com/show_bug.cgi?id=1182263