CVE-2023-4001 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2023-4001 Interim 1 5 2025-02-16T02:31:55Z current 2024-01-12T00:19:17Z 2025-02-16T02:31:55Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2023-4001 An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the "/boot/" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Liberty Linux 9 grub2-common-2.06-70.el9_3.2 grub2-efi-x64-2.06-70.el9_3.2 grub2-efi-x64-cdboot-2.06-70.el9_3.2 grub2-efi-x64-modules-2.06-70.el9_3.2 grub2-pc-2.06-70.el9_3.2 grub2-pc-modules-2.06-70.el9_3.2 grub2-tools-2.06-70.el9_3.2 grub2-tools-efi-2.06-70.el9_3.2 grub2-tools-extra-2.06-70.el9_3.2 grub2-tools-minimal-2.06-70.el9_3.2 grub2-common-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-efi-x64-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-efi-x64-cdboot-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-efi-x64-modules-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-pc-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-pc-modules-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-tools-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-tools-efi-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-tools-extra-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 grub2-tools-minimal-2.06-70.el9_3.2 as a component of SUSE Liberty Linux 9 An authentication bypass flaw was found in GRUB due to the way that GRUB uses the UUID of a device to search for the configuration file that contains the password hash for the GRUB password protection feature. An attacker capable of attaching an external drive such as a USB stick containing a file system with a duplicate UUID (the same as in the "/boot/" file system) can bypass the GRUB password protection feature on UEFI systems, which enumerate removable drives before non-removable ones. This issue was introduced in a downstream patch in Red Hat's version of grub2 and does not affect the upstream package. CVE-2023-4001 SUSE Liberty Linux 9:grub2-common-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-efi-x64-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-efi-x64-cdboot-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-efi-x64-modules-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-pc-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-pc-modules-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-tools-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-tools-efi-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-tools-extra-2.06-70.el9_3.2 SUSE Liberty Linux 9:grub2-tools-minimal-2.06-70.el9_3.2 moderate 5.6 CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N