#VU113331 Buffer overflow in Linux kernel - CVE-2025-38465

Vulnerability identifier: #VU113331

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-2025-38465

CWE-ID: CWE-119

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 memory corruption within the netlink_skb_set_owner_r(), netlink_alloc_large_skb(), netlink_unicast_kernel(), EXPORT_SYMBOL_GPL() and netlink_dump() functions in net/netlink/af_netlink.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/4b8e18af7bea92f8b7fb92d40aeae729209db250
https://git.kernel.org/stable/c/55baecb9eb90238f60a8350660d6762046ebd3bd
https://git.kernel.org/stable/c/76602d8e13864524382b0687dc32cd8f19164d5a
https://git.kernel.org/stable/c/9da025150b7c14a8390fc06aea314c0a4011e82c
https://git.kernel.org/stable/c/ae8f160e7eb24240a2a79fc4c815c6a0d4ee16cc
https://git.kernel.org/stable/c/c4ceaac5c5ba0b992ee1dc88e2a02421549e5c98
https://git.kernel.org/stable/c/cd7ff61bfffd7000143c42bbffb85eeb792466d6
https://git.kernel.org/stable/c/fd69af06101090eaa60b3d216ae715f9c0a58e5b

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?