#VU99230 Input validation error in Linux kernel - CVE-2024-49859

Vulnerability identifier: #VU99230

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-2024-49859

CWE-ID: CWE-20

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 input validation within the f2fs_defragment_range(), f2fs_move_file_range() and f2fs_ioc_set_pin_file() functions in fs/f2fs/file.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/26b07bd2e1f124b0e430c8d250023f7205c549c3
https://git.kernel.org/stable/c/7cb51731f24b216b0b87942f519f2c67a17107ee
https://git.kernel.org/stable/c/10569b682ebe9c75ef06ddd322ae844e9be6374b
https://git.kernel.org/stable/c/d6f08c88047accc6127dddb6798a3ff11321539d
https://git.kernel.org/stable/c/bfe5c02654261bfb8bd9cb174a67f3279ea99e58

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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.