CVE-2020-15705

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.

Link	Resource
https://www.suse.com/support/kb/doc/?id=000019673	Third Party Advisory
http://ubuntu.com/security/notices/USN-4432-1	Third Party Advisory
https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html	Issue Tracking Vendor Advisory
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass	Third Party Advisory
https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot	Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011	Patch Third Party Advisory
https://access.redhat.com/security/vulnerabilities/grub2bootloader	Third Party Advisory
https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/	Third Party Advisory
https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/	Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/07/29/3	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/07/29/3	Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20200731-0008/	Third Party Advisory
https://usn.ubuntu.com/4432-1/	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/03/02/3	Mailing List Third Party Advisory
https://security.gentoo.org/glsa/202104-05	Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/2	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/17/4	Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/09/21/1	Mailing List Third Party Advisory

Configuration 1

cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* cpe:2.3:o:suse:suse_linux_enterprise_server:11:*:*:*:*:*:*:* cpe:2.3:o:suse:suse_linux_enterprise_server:12:*:*:*:*:*:*:* cpe:2.3:o:suse:suse_linux_enterprise_server:15:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:a:redhat:enterprise_linux_atomic_host:-:*:*:*:*:*:*:* cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1903:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:1909:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:*

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Published : 2020-07-29 06:15

Updated : 2022-04-18 03:22

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NVD link : CVE-2020-15705

Mitre link : CVE-2020-15705

No products.

CWE-347

Improper Verification of Cryptographic Signature