Upstream information
Description
If certificates that signed grub are installed into db, grub can be booted directly. It will then boot any kernel without signature validation. The booted kernel will think it was booted in secureboot mode and will implement lockdown, yet it could have been tampered. This flaw is a reintroduction of CVE-2020-15705 and only affects grub2 versions prior to 2.06 and upstream and distributions using the shim_lock mechanism.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| National Vulnerability Database | |
|---|---|
| Base Score | 4.4 |
| Vector | AV:L/AC:M/Au:N/C:P/I:P/A:P |
| Access Vector | Local |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | Partial |
| Integrity Impact | Partial |
| Availability Impact | Partial |
| National Vulnerability Database | SUSE | |
|---|---|---|
| Base Score | 6.4 | 6.4 |
| Vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Attack Vector | Local | Local |
| Attack Complexity | High | High |
| Privileges Required | High | High |
| User Interaction | None | None |
| Scope | Unchanged | Unchanged |
| Confidentiality Impact | High | High |
| Integrity Impact | High | High |
| Availability Impact | High | High |
| CVSSv3 Version | 3.1 | 3.1 |
Note from the SUSE Security Team
This issue does not affect SUSE Linux Enterprise or openSUSE, as it exists only in newer grub2 versions. SUSE Bugzilla entry: 1182890 [RESOLVED / UPSTREAM] No SUSE Security Announcements cross referenced.Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Micro 5.2 | grub2 | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SLES15-EC2-CHOST-HVM-BYOS | grub2 | Not affected |
| SLES15-SP1-CHOST-BYOS-Azure | grub2 | Not affected |
| SLES15-SP1-CHOST-BYOS-EC2 | grub2 | Not affected |
| SLES15-SP1-CHOST-BYOS-GCE | grub2 | Not affected |
| SLES15-SP2-CHOST-BYOS-Aliyun | grub2 | Not affected |
| SLES15-SP2-CHOST-BYOS-Azure | grub2 | Not affected |
| SLES15-SP2-CHOST-BYOS-EC2 | grub2 | Not affected |
| SLES15-SP2-CHOST-BYOS-GCE | grub2 | Not affected |
| SLES15-SP3-CHOST-BYOS-Aliyun | grub2 | Not affected |
| SLES15-SP3-CHOST-BYOS-Azure | grub2 | Not affected |
| SLES15-SP3-CHOST-BYOS-EC2 | grub2 | Not affected |
| SLES15-SP3-CHOST-BYOS-GCE | grub2 | Not affected |
| SLES15-SP3-CHOST-BYOS-SAP-CCloud | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 12 SP5 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP5 | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP3-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 15-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise Server Business Critical Linux 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | grub2 | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| HPE Helion OpenStack 8 | grub2 | Not affected |
| SUSE CaaS Platform 3.0 | grub2 | Not affected |
| SUSE CaaS Platform 4.0 | grub2 | Not affected |
| SUSE Enterprise Storage 6 | grub2 | Not affected |
| SUSE Enterprise Storage 7 | grub2 | Not affected |
| SUSE Enterprise Storage 7.1 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 11 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 11 SP4 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 12 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 15 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Desktop 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise High Performance Computing 15-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Micro 5.0 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 | grub2 | Not affected |
| SUSE Linux Enterprise Module for Server Applications 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | grub2 | Not affected |
| SUSE Linux Enterprise Point of Service Image Server 12 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Real Time 15 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server 11 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server 11 SP3-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 11 SP4 | grub2 | Not affected |
| SUSE Linux Enterprise Server 11 SP4 LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 11 SP4-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP2-BCL | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP2-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | grub2 | Not affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP1 | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP1-BCL | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP1-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP2-BCL | grub2 | Not affected |
| SUSE Linux Enterprise Server 15 SP3-BCL | grub2 | Not affected |
| SUSE Linux Enterprise Server 15-LTSS | grub2 | Not affected |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 | grub2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | grub2 | Not affected |
| SUSE Manager Proxy 4.0 | grub2 | Not affected |
| SUSE Manager Proxy 4.1 | grub2 | Not affected |
| SUSE Manager Proxy 4.2 | grub2 | Not affected |
| SUSE Manager Proxy Module 4.2 | grub2 | Not affected |
| SUSE Manager Retail Branch Server 4.0 | grub2 | Not affected |
| SUSE Manager Retail Branch Server 4.1 | grub2 | Not affected |
| SUSE Manager Retail Branch Server 4.2 | grub2 | Not affected |
| SUSE Manager Server 4.0 | grub2 | Not affected |
| SUSE Manager Server 4.1 | grub2 | Not affected |
| SUSE Manager Server 4.2 | grub2 | Not affected |
| SUSE OpenStack Cloud 7 | grub2 | Not affected |
| SUSE OpenStack Cloud 8 | grub2 | Not affected |
| SUSE OpenStack Cloud 9 | grub2 | Not affected |
| SUSE OpenStack Cloud Crowbar 8 | grub2 | Not affected |
| SUSE OpenStack Cloud Crowbar 9 | grub2 | Not affected |
| openSUSE Leap 15.3 | grub2 | Not affected |
| openSUSE Leap Micro 5.2 | grub2 | Not affected |
| Container Status | ||
| suse/sle-micro-rancher/5.2 | grub2 | Not affected |
SUSE Timeline for this CVE
CVE page created: Tue Mar 2 08:05:59 2021CVE page last modified: Mon Nov 18 14:00:12 2024