#VU104724 Input validation error in Linux kernel - CVE-2022-49360

Vulnerability identifier: #VU104724

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-2022-49360

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 build_sit_entries() function in fs/f2fs/segment.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10, 5.10 rc1, 5.10 rc2, 5.10 rc3, 5.10 rc4, 5.10 rc5, 5.10 rc7, 5.10.1, 5.10.2, 5.10.3, 5.10.4, 5.10.5, 5.10.6, 5.10.7, 5.10.8, 5.10.9, 5.10.10, 5.10.11, 5.10.12, 5.10.13, 5.10.14, 5.10.15, 5.10.16, 5.10.17, 5.10.18, 5.10.19, 5.10.20, 5.10.21, 5.10.22, 5.10.23, 5.10.24, 5.10.25, 5.10.26, 5.10.27, 5.10.28, 5.10.29, 5.10.30, 5.10.31, 5.10.32, 5.10.33, 5.10.34, 5.10.35, 5.10.36, 5.10.37, 5.10.38, 5.10.39, 5.10.40, 5.10.41, 5.10.42, 5.10.43, 5.10.44, 5.10.45, 5.10.46, 5.10.47, 5.10.48, 5.10.49, 5.10.50, 5.10.51, 5.10.52, 5.10.53, 5.10.54, 5.10.55, 5.10.56, 5.10.57, 5.10.58, 5.10.59, 5.10.60, 5.10.61, 5.10.62, 5.10.63, 5.10.64, 5.10.65, 5.10.66, 5.10.67, 5.10.68, 5.10.69, 5.10.70, 5.10.71, 5.10.72, 5.10.73, 5.10.74, 5.10.75, 5.10.76, 5.10.77, 5.10.78, 5.10.79, 5.10.80, 5.10.81, 5.10.82, 5.10.83, 5.10.84, 5.10.85, 5.10.86, 5.10.87, 5.10.88, 5.10.89, 5.10.90, 5.10.91, 5.10.92, 5.10.93, 5.10.94, 5.10.95, 5.10.96, 5.10.97, 5.10.98, 5.10.99, 5.10.100, 5.10.101, 5.10.102, 5.10.103, 5.10.104, 5.10.105, 5.10.106, 5.10.107, 5.10.108, 5.10.109, 5.10.110, 5.10.111, 5.10.112, 5.10.113, 5.10.114, 5.10.115, 5.10.116, 5.10.117, 5.10.118, 5.10.119, 5.10.120

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External links
https://git.kernel.org/stable/c/071b1269a3b3ad9cec16ed76a48015bfffd9aee8
https://git.kernel.org/stable/c/6b8beca0edd32075a769bfe4178ca00c0dcd22a9
https://git.kernel.org/stable/c/c9e4cd5b0ccd7168801d6a811919171b185c5cf8
https://git.kernel.org/stable/c/cc8c9df19971e59ebbe669ce710080e347dfec32
https://git.kernel.org/stable/c/ef221b738b26d8c9f7e7967f4586db2dd3bd5288
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121

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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.