CVE-2020-15706
Summary
| CVE | CVE-2020-15706 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-07-29 18:15:00 UTC |
| Updated | 2022-11-16 03:58:00 UTC |
| Description | GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. |
Risk And Classification
Problem Types: CWE-362 | CWE-416
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 20.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 14.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 18.04 | All | All | All |
| Operating System | Canonical | Ubuntu Linux | 20.04 | All | All | All |
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Operating System | Debian | Debian Linux | 10.0 | All | All | All |
| Application | Gnu | Grub2 | All | All | All | All |
| Operating System | Microsoft | Windows 10 | - | All | All | All |
| Operating System | Microsoft | Windows 10 | 1607 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1709 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1803 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1809 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1903 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1909 | All | All | All |
| Operating System | Microsoft | Windows 10 | 2004 | All | All | All |
| Operating System | Microsoft | Windows 10 | - | All | All | All |
| Operating System | Microsoft | Windows 10 | 1607 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1709 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1803 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1809 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1903 | All | All | All |
| Operating System | Microsoft | Windows 10 | 1909 | All | All | All |
| Operating System | Microsoft | Windows 10 | 2004 | All | All | All |
| Operating System | Microsoft | Windows 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows Rt 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows Rt 8.1 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2012 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2012 | r2 | All | All | All |
| Operating System | Microsoft | Windows Server 2012 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2012 | r2 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1903 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1909 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 2004 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1903 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 1909 | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | 2004 | All | All | All |
| Operating System | Microsoft | Windows Server 2019 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2019 | - | All | All | All |
| Operating System | Opensuse | Leap | 15.1 | All | All | All |
| Operating System | Opensuse | Leap | 15.2 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 8.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 7.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 8.0 | All | All | All |
| Application | Redhat | Enterprise Linux Atomic Host | - | All | All | All |
| Application | Redhat | Enterprise Linux Atomic Host | - | All | All | All |
| Application | Redhat | Openshift Container Platform | 4.0 | All | All | All |
| Application | Redhat | Openshift Container Platform | 4.0 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 12 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 15 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 11 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 12 | All | All | All |
| Operating System | Suse | Suse Linux Enterprise Server | 15 | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| oss-security - multiple secure boot grub2 and linux kernel vulnerabilities | MLIST | www.openwall.com | Mailing List, Third Party Advisory |
| oss-security - multiple secure boot grub2 and linux kernel vulnerabilities | CONFIRM | www.openwall.com | Mailing List, Third Party Advisory |
| [SECURITY PATCH 00/28] Multiple GRUB2 vulnerabilities - BootHole | CONFIRM | lists.gnu.org | Issue Tracking, Vendor Advisory |
| Security Vulnerability: "Boothole" grub2 UEFI secure boot lockdown bypass | Support | SUSE | SUSE | www.suse.com | Third Party Advisory |
| SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass - Ubuntu Wiki | UBUNTU | wiki.ubuntu.com | Third Party Advisory |
| July 2020 Grub2 Vulnerabilities in NetApp Products | NetApp Product Security | CONFIRM | security.netapp.com | Third Party Advisory |
| portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 | CONFIRM | portal.msrc.microsoft.com | Third Party Advisory |
| Debian -- Security Information -- DSA-4735-1 grub2 | DEBIAN | www.debian.org | Third Party Advisory |
| SUSE addresses BootHole security exposure - SUSE Communities | SUSE | www.suse.com | Third Party Advisory |
| [security-announce] openSUSE-SU-2020:1168-1: important: Security update | SUSE | lists.opensuse.org | |
| Debian -- GRUB2 UEFI SecureBoot vulnerability - 'BootHole' | DEBIAN | www.debian.org | Third Party Advisory |
| [security-announce] openSUSE-SU-2020:1169-1: important: Security update | SUSE | lists.opensuse.org | |
| GRUB: Multiple vulnerabilities (GLSA 202104-05) — Gentoo security | GENTOO | security.gentoo.org | |
| USN-4432-1: GRUB 2 vulnerabilities | Ubuntu security notices | Ubuntu | UBUNTU | usn.ubuntu.com | |
| Boot Hole Vulnerability - GRUB 2 boot loader - CVE-2020-10713 - Red Hat Customer Portal | REDHAT | access.redhat.com | Third Party Advisory |
| USN-4432-1: GRUB 2 vulnerabilities | Ubuntu security notices | Ubuntu | UBUNTU | ubuntu.com | Third Party Advisory |
| There’s a Hole in the Boot - Eclypsium | CONFIRM | www.eclypsium.com | Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
LEGACY: Chris Coulson
Legacy QID Mappings
- 377345 Alibaba Cloud Linux Security Update for grub2 (ALINUX3-SA-2022:0064)
- 377533 Alibaba Cloud Linux Security Update for grub2 (ALINUX2-SA-2020:0108)
- 502730 Alpine Linux Security Update for grub
- 710015 Gentoo Linux GRUB Multiple Vulnerabilities (GLSA 202104-05)
- 900175 CBL-Mariner Linux Security Update for grub2 2.02
- 903462 Common Base Linux Mariner (CBL-Mariner) Security Update for grub2 (1822)