Fedora 38 update for rear

1) Incorrect default permissions

EUVDB-ID: #VU85736

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-23301

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to software creates a world-readable initrd when using GRUB_RESCUE=y. A local user with access to the system can gain access to system secrets otherwise only readable by root.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 38

rear: before 2.7-8.fc38

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:rear:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2024-49ddbf447d

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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