#VU107727 NULL pointer dereference in Linux kernel - CVE-2025-22062

Vulnerability identifier: #VU107727

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-2025-22062

CWE-ID: CWE-476

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 NULL pointer dereference within the proc_sctp_do_auth() and proc_sctp_do_udp_port() functions in net/sctp/sysctl.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.13 - 6.13.10

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External links
https://git.kernel.org/stable/c/10206302af856791fbcc27a33ed3c3eb09b2793d
https://git.kernel.org/stable/c/d3d7675d77622f6ca1aae14c51f80027b36283f8
https://git.kernel.org/stable/c/e5178bfc55b3a78000f0f8298e7ade88783ce581
https://git.kernel.org/stable/c/efb8cb487be8f4ba6aaef616011d702d6a083ed1
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?