Incorrect calculation in Linux kernel mptcp

1) Incorrect calculation

EUVDB-ID: #VU97284

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46711

CWE-ID: CWE-682 - Incorrect Calculation

Exploit availability: No

Description

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

The vulnerability exists due to incorrect calculation within the !!() and mptcp_pm_nl_add_addr_received() functions in net/mptcp/pm_netlink.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

CPE2.3

External links

http://git.kernel.org/stable/c/c9c744666f7308a4daba520191e29d395260bcfe
http://git.kernel.org/stable/c/53e2173172d26c0617b29dd83618b71664bed1fb
http://git.kernel.org/stable/c/119806ae4e46cf239db8e6ad92bc2fd3daae86dc
http://git.kernel.org/stable/c/9366922adc6a71378ca01f898c41be295309f044

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.