#VU101112 Division by zero in Linux kernel - CVE-2024-53123

Vulnerability identifier: #VU101112

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-2024-53123

CWE-ID: CWE-369

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 a division by zero error within the mptcp_recvmsg() and pr_debug() functions in net/mptcp/protocol.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/581302298524e9d77c4c44ff5156a6cd112227ae
https://git.kernel.org/stable/c/955388e1d5d222c4101c596b536d41b91a8b212e
https://git.kernel.org/stable/c/a66805c9b22caf4e42af7a616f6c6b83c90d1010
https://git.kernel.org/stable/c/a749b23059b43a9b1787eb36c5d9d44150a34238

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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.