Security update for grub2
SUSE Security Update: Security update for grub2Announcement ID: | SUSE-SU-2021:0681-1 |
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 |
Affected Products: |
|
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 OpenStack Cloud Crowbar 9:
zypper in -t patch SUSE-OpenStack-Cloud-Crowbar-9-2021-681=1
- SUSE OpenStack Cloud 9:
zypper in -t patch SUSE-OpenStack-Cloud-9-2021-681=1
- SUSE Linux Enterprise Server for SAP 12-SP4:
zypper in -t patch SUSE-SLE-SAP-12-SP4-2021-681=1
- SUSE Linux Enterprise Server 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-681=1
- SUSE Linux Enterprise Server 12-SP4-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-SP4-LTSS-2021-681=1
Package List:
- SUSE OpenStack Cloud Crowbar 9 (noarch):
- grub2-snapper-plugin-2.02-12.47.1
- grub2-systemd-sleep-plugin-2.02-12.47.1
- grub2-x86_64-xen-2.02-12.47.1
- SUSE OpenStack Cloud Crowbar 9 (x86_64):
- grub2-2.02-12.47.1
- grub2-debuginfo-2.02-12.47.1
- 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 OpenStack Cloud 9 (x86_64):
- grub2-2.02-12.47.1
- grub2-debuginfo-2.02-12.47.1
- 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 OpenStack Cloud 9 (noarch):
- grub2-snapper-plugin-2.02-12.47.1
- grub2-systemd-sleep-plugin-2.02-12.47.1
- grub2-x86_64-xen-2.02-12.47.1
- SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le x86_64):
- grub2-2.02-12.47.1
- grub2-debuginfo-2.02-12.47.1
- SUSE Linux Enterprise Server for SAP 12-SP4 (ppc64le):
- grub2-powerpc-ieee1275-2.02-12.47.1
- SUSE Linux Enterprise Server for SAP 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 for SAP 12-SP4 (noarch):
- grub2-snapper-plugin-2.02-12.47.1
- grub2-systemd-sleep-plugin-2.02-12.47.1
- grub2-x86_64-xen-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP5 (aarch64 ppc64le s390x x86_64):
- grub2-2.02-12.47.1
- grub2-debuginfo-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 (ppc64le):
- grub2-powerpc-ieee1275-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP5 (aarch64):
- grub2-arm64-efi-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP5 (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 (noarch):
- grub2-snapper-plugin-2.02-12.47.1
- grub2-systemd-sleep-plugin-2.02-12.47.1
- grub2-x86_64-xen-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-SP4-LTSS (aarch64 ppc64le s390x x86_64):
- grub2-2.02-12.47.1
- grub2-debuginfo-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64 s390x x86_64):
- grub2-debugsource-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP4-LTSS (aarch64):
- grub2-arm64-efi-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP4-LTSS (ppc64le):
- grub2-powerpc-ieee1275-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP4-LTSS (noarch):
- grub2-snapper-plugin-2.02-12.47.1
- grub2-systemd-sleep-plugin-2.02-12.47.1
- grub2-x86_64-xen-2.02-12.47.1
- SUSE Linux Enterprise Server 12-SP4-LTSS (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 (s390x):
- grub2-s390x-emu-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/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