Fedora 38 update for grub2



Published: 2024-01-22
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-4001
CWE-ID CWE-254
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		Fedora
Operating systems & Components / Operating system

grub2
Operating systems & Components / Operating system package or component

Vendor Fedoraproject

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Security features bypass

EUVDB-ID: #VU85654

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4001

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows an attacker to bypass GRUB password protection feature.

The vulnerability exists due to an error 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 with physical access to the system can bypass the GRUB password protection feature on UEFI systems.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 38

grub2: before 2.06-114.fc38

CPE2.3 External links

http://bodhi.fedoraproject.org/updates/FEDORA-2024-633dc7e183


Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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