Security update for shim SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2020:2626-1 Final 1 1 2020-09-14T16:10:56Z current 2020-09-14T16:10:56Z 2020-09-14T16:10:56Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for shim This update for shim fixes the following issues: - Update to the unified shim binary from SUSE Linux Enterprise 15-SP1 (bsc#1168994) This update addresses the 'BootHole' security issue (master CVE CVE-2020-10713), by disallowing binaries signed by the previous SUSE UEFI signing key from booting. This update should only be installed after updates of grub2, the Linux kernel and (if used) Xen from July / August 2020 are applied. Additional fixes: + shim-install: install MokManager to \EFI\boot to process the pending MOK request (bsc#1175626, bsc#1175656) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). Image SLES15-EC2-HVM-BYOS-2020-2626,Image SLES15-GCE-BYOS-2020-2626,Image SLES15-OCI-BYOS-2020-2626,Image SLES15-SAP-Azure-LI-BYOS-Production-2020-2626,Image SLES15-SAP-Azure-VLI-BYOS-Production-2020-2626,Image SLES15-SAP-EC2-HVM-2020-2626,Image SLES15-SAP-EC2-HVM-BYOS-2020-2626,Image SLES15-SAP-GCE-2020-2626,Image SLES15-SAP-GCE-BYOS-2020-2626,Image SLES15-SAP-OCI-BYOS-2020-2626,SUSE-2020-2626,SUSE-SLE-Product-HPC-15-2020-2626,SUSE-SLE-Product-SLES_SAP-15-2020-2626 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-20202626-1/ Link for SUSE-SU-2020:2626-1 https://lists.suse.com/pipermail/sle-security-updates/2020-September/007423.html E-Mail link for SUSE-SU-2020:2626-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1168994 SUSE Bug 1168994 https://bugzilla.suse.com/1175626 SUSE Bug 1175626 https://bugzilla.suse.com/1175656 SUSE Bug 1175656 https://www.suse.com/security/cve/CVE-2020-10713/ SUSE CVE CVE-2020-10713 page Image SLES15-EC2-HVM-BYOS Image SLES15-GCE-BYOS Image SLES15-OCI-BYOS Image SLES15-SAP-Azure-LI-BYOS-Production Image SLES15-SAP-Azure-VLI-BYOS-Production Image SLES15-SAP-EC2-HVM Image SLES15-SAP-EC2-HVM-BYOS Image SLES15-SAP-GCE Image SLES15-SAP-GCE-BYOS Image SLES15-SAP-OCI-BYOS SUSE Linux Enterprise High Performance Computing 15-ESPOS SUSE Linux Enterprise High Performance Computing 15-LTSS SUSE Linux Enterprise Server for SAP Applications 15 shim-15+git47-7.15.1 shim-15+git47-7.15.1 as a component of Image SLES15-EC2-HVM-BYOS shim-15+git47-7.15.1 as a component of Image SLES15-GCE-BYOS shim-15+git47-7.15.1 as a component of Image SLES15-OCI-BYOS shim-15+git47-7.15.1 as a component of Image SLES15-SAP-Azure-LI-BYOS-Production shim-15+git47-7.15.1 as a component of Image SLES15-SAP-Azure-VLI-BYOS-Production shim-15+git47-7.15.1 as a component of Image SLES15-SAP-EC2-HVM shim-15+git47-7.15.1 as a component of Image SLES15-SAP-EC2-HVM-BYOS shim-15+git47-7.15.1 as a component of Image SLES15-SAP-GCE shim-15+git47-7.15.1 as a component of Image SLES15-SAP-GCE-BYOS shim-15+git47-7.15.1 as a component of Image SLES15-SAP-OCI-BYOS shim-15+git47-7.15.1 as a component of SUSE Linux Enterprise High Performance Computing 15-ESPOS shim-15+git47-7.15.1 as a component of SUSE Linux Enterprise High Performance Computing 15-LTSS shim-15+git47-7.15.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 A flaw was found in grub2, prior to version 2.06. An attacker may use the GRUB 2 flaw to hijack and tamper the GRUB verification process. This flaw also allows the bypass of Secure Boot protections. In order to load an untrusted or modified kernel, an attacker would first need to establish access to the system such as gaining physical access, obtain the ability to alter a pxe-boot network, or have remote access to a networked system with root access. With this access, an attacker could then craft a string to cause a buffer overflow by injecting a malicious payload that leads to arbitrary code execution within GRUB. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. CVE-2020-10713 Image SLES15-EC2-HVM-BYOS:shim-15+git47-7.15.1 Image SLES15-GCE-BYOS:shim-15+git47-7.15.1 Image SLES15-OCI-BYOS:shim-15+git47-7.15.1 Image SLES15-SAP-Azure-LI-BYOS-Production:shim-15+git47-7.15.1 Image SLES15-SAP-Azure-VLI-BYOS-Production:shim-15+git47-7.15.1 Image SLES15-SAP-EC2-HVM-BYOS:shim-15+git47-7.15.1 Image SLES15-SAP-EC2-HVM:shim-15+git47-7.15.1 Image SLES15-SAP-GCE-BYOS:shim-15+git47-7.15.1 Image SLES15-SAP-GCE:shim-15+git47-7.15.1 Image SLES15-SAP-OCI-BYOS:shim-15+git47-7.15.1 SUSE Linux Enterprise High Performance Computing 15-ESPOS:shim-15+git47-7.15.1 SUSE Linux Enterprise High Performance Computing 15-LTSS:shim-15+git47-7.15.1 SUSE Linux Enterprise Server for SAP Applications 15:shim-15+git47-7.15.1 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-20202626-1/ https://www.suse.com/security/cve/CVE-2020-10713.html CVE-2020-10713 https://bugzilla.suse.com/1168994 SUSE Bug 1168994 https://bugzilla.suse.com/1173456 SUSE Bug 1173456 https://bugzilla.suse.com/1173812 SUSE Bug 1173812 https://bugzilla.suse.com/1199353 SUSE Bug 1199353