Denial of service in Linux kernel mptcp

1) Resource management error

EUVDB-ID: #VU93429

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-2024-35840

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the subflow_finish_connect() function in net/mptcp/subflow.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/413b913507326972135d2977975dbff8b7f2c453
https://git.kernel.org/stable/c/51e4cb032d49ce094605f27e45eabebc0408893c
https://git.kernel.org/stable/c/ad3e8f5c3d5c53841046ef7a947c04ad45a20721
https://git.kernel.org/stable/c/76e8de7273a22a00d27e9b8b7d4d043d6433416a
https://git.kernel.org/stable/c/be1d9d9d38da922bd4beeec5b6dd821ff5a1dfeb

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.