SUSE-SU-2021:0685-1: important: Security update for grub2
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sle-security-updates at lists.suse.com
Tue Mar 2 23:16:44 UTC 2021
SUSE Security Update: Security update for grub2
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0685-1
Rating: important
References: #1175970 #1176711 #1177883 #1179264 #1179265
#1182057 #1182262 #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-2020-25632 (SUSE): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2020-25647 (SUSE): 7.6 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2020-27749 (SUSE): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
CVE-2020-27779 (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 (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 (SUSE): 7.5 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Affected Products:
SUSE Linux Enterprise Server for SAP 15
SUSE Linux Enterprise Server 15-LTSS
SUSE Linux Enterprise High Performance Computing 15-LTSS
SUSE Linux Enterprise High Performance Computing 15-ESPOS
______________________________________________________________________________
An update that solves 7 vulnerabilities and has one errata
is now available.
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 Security 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 for SAP 15:
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2021-685=1
- SUSE Linux Enterprise Server 15-LTSS:
zypper in -t patch SUSE-SLE-Product-SLES-15-2021-685=1
- SUSE Linux Enterprise High Performance Computing 15-LTSS:
zypper in -t patch SUSE-SLE-Product-HPC-15-2021-685=1
- SUSE Linux Enterprise High Performance Computing 15-ESPOS:
zypper in -t patch SUSE-SLE-Product-HPC-15-2021-685=1
Package List:
- SUSE Linux Enterprise Server for SAP 15 (ppc64le x86_64):
grub2-2.02-19.66.1
grub2-debuginfo-2.02-19.66.1
- SUSE Linux Enterprise Server for SAP 15 (ppc64le):
grub2-powerpc-ieee1275-2.02-19.66.1
- SUSE Linux Enterprise Server for SAP 15 (noarch):
grub2-snapper-plugin-2.02-19.66.1
grub2-systemd-sleep-plugin-2.02-19.66.1
- SUSE Linux Enterprise Server for SAP 15 (x86_64):
grub2-debugsource-2.02-19.66.1
grub2-i386-pc-2.02-19.66.1
grub2-x86_64-efi-2.02-19.66.1
grub2-x86_64-xen-2.02-19.66.1
- SUSE Linux Enterprise Server 15-LTSS (aarch64 s390x):
grub2-2.02-19.66.1
grub2-debuginfo-2.02-19.66.1
grub2-debugsource-2.02-19.66.1
- SUSE Linux Enterprise Server 15-LTSS (aarch64):
grub2-arm64-efi-2.02-19.66.1
- SUSE Linux Enterprise Server 15-LTSS (noarch):
grub2-snapper-plugin-2.02-19.66.1
grub2-systemd-sleep-plugin-2.02-19.66.1
- SUSE Linux Enterprise Server 15-LTSS (s390x):
grub2-s390x-emu-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64 x86_64):
grub2-2.02-19.66.1
grub2-debuginfo-2.02-19.66.1
grub2-debugsource-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-LTSS (aarch64):
grub2-arm64-efi-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-LTSS (noarch):
grub2-snapper-plugin-2.02-19.66.1
grub2-systemd-sleep-plugin-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-LTSS (x86_64):
grub2-i386-pc-2.02-19.66.1
grub2-x86_64-efi-2.02-19.66.1
grub2-x86_64-xen-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64 x86_64):
grub2-2.02-19.66.1
grub2-debuginfo-2.02-19.66.1
grub2-debugsource-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-ESPOS (aarch64):
grub2-arm64-efi-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-ESPOS (x86_64):
grub2-i386-pc-2.02-19.66.1
grub2-x86_64-efi-2.02-19.66.1
grub2-x86_64-xen-2.02-19.66.1
- SUSE Linux Enterprise High Performance Computing 15-ESPOS (noarch):
grub2-snapper-plugin-2.02-19.66.1
grub2-systemd-sleep-plugin-2.02-19.66.1
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/1175970
https://bugzilla.suse.com/1176711
https://bugzilla.suse.com/1177883
https://bugzilla.suse.com/1179264
https://bugzilla.suse.com/1179265
https://bugzilla.suse.com/1182057
https://bugzilla.suse.com/1182262
https://bugzilla.suse.com/1182263
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