Vulnerability CVE-2023-4001: Information
Description
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.
Severity: MEDIUM (6.8)
Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Fixed packages
Package name | Branch | Fixed in version | Version from repository | Errata ID | Task # | State |
|---|---|---|---|---|---|---|
| grub | sisyphus | 2.12-alt7 | 2.12-alt16 | ALT-PU-2025-4073-2 | 377497 | Fixed |
| grub | sisyphus_riscv64 | 2.12-alt0.port.1 | 2.12-alt16.0.port | ALT-PU-2024-17701-1 | - | Fixed |
| grub | sisyphus_loongarch64 | 2.12-alt0.port | 2.12-alt16.0.port | ALT-PU-2024-13317-1 | - | Fixed |
| grub | p11 | 2.12-alt3 | 2.12-alt14 | ALT-PU-2024-11222-2 | 354669 | Fixed |
| grub | p10 | 2.12-alt11 | 2.12-alt11 | ALT-PU-2025-6088-3 | 382348 | Fixed |
| grub | c10f2 | 2.12-alt14 | 2.12-alt14 | ALT-PU-2025-8514-3 | 388005 | Fixed |