CVE-2023-4001
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CVSS Score
V3.1EPSS Score
v2023.03.01There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.
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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.
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GitHub Security Advisories
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Advisory Details
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CVSS Score
CVSS Vector
CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
References
Advisory provided by GitHub Security Advisory Database. Published: January 15, 2024, Modified: February 16, 2024