Security update for grub2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2020:14461-1 Final 1 1 2020-08-25T12:49:25Z current 2020-08-25T12:49:25Z 2020-08-25T12:49:25Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for grub2 This update for grub2 fixes the following issues: - CVE-2020-15705: Fail kernel validation without shim protocol (bsc#1174421). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). slessp4-grub2-14461 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2020/suse-su-202014461-1/ Link for SUSE-SU-2020:14461-1 https://lists.suse.com/pipermail/sle-security-updates/2020-August/007297.html E-Mail link for SUSE-SU-2020:14461-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1174421 SUSE Bug 1174421 https://www.suse.com/security/cve/CVE-2020-15705/ SUSE CVE CVE-2020-15705 page SUSE Linux Enterprise Server 11 SP4-LTSS grub2-x86_64-efi-2.00-0.66.21.1 grub2-x86_64-xen-2.00-0.66.21.1 grub2-x86_64-efi-2.00-0.66.21.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS grub2-x86_64-xen-2.00-0.66.21.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. CVE-2020-15705 SUSE Linux Enterprise Server 11 SP4-LTSS:grub2-x86_64-efi-2.00-0.66.21.1 SUSE Linux Enterprise Server 11 SP4-LTSS:grub2-x86_64-xen-2.00-0.66.21.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2020/suse-su-202014461-1/ https://www.suse.com/security/cve/CVE-2020-15705.html CVE-2020-15705 https://bugzilla.suse.com/1174421 SUSE Bug 1174421 https://bugzilla.suse.com/1182890 SUSE Bug 1182890