#VU102066 Use-after-free in Linux kernel - CVE-2024-53218

Vulnerability identifier: #VU102066

Vulnerability 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-2024-53218

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to a use-after-free error within the f2fs_do_shutdown() function in fs/f2fs/file.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1

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External links
https://git.kernel.org/stable/c/60457ed6c67625c87861f96912b4179dc2293896
https://git.kernel.org/stable/c/794fa8792d4eacac191f1cbcc2e81b7369e4662a
https://git.kernel.org/stable/c/7b0033dbc48340a1c1c3f12448ba17d6587ca092
https://git.kernel.org/stable/c/c631207897a9b3d41167ceca58e07f8f94720e42
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.2

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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.