#VU99034 Improper locking in Linux kernel - CVE-2024-47689

Vulnerability identifier: #VU99034

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-47689

CWE-ID: CWE-667

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 perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the f2fs_handle_critical_error() function in fs/f2fs/super.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/649ec8b30df113042588bd3d3cd4e98bcb1091e0
https://git.kernel.org/stable/c/de43021c72993877a8f86f9fddfa0687609da5a4
https://git.kernel.org/stable/c/1f63f405c1a1a64b9c310388aad7055fb86b245c
https://git.kernel.org/stable/c/930c6ab93492c4b15436524e704950b364b2930c

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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.