#VU107786 Resource management error in Linux kernel - CVE-2025-22021

Vulnerability identifier: #VU107786

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-2025-22021

CWE-ID: CWE-399

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 resource management error within the nf_sk_lookup_slow_v6() function in net/ipv6/netfilter/nf_socket_ipv6.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.4, 5.4.0, 5.4.0 rc6, 5.4.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.6, 5.4.7, 5.4.8, 5.4.9, 5.4.10, 5.4.11, 5.4.12, 5.4.13, 5.4.14, 5.4.15, 5.4.16, 5.4.17, 5.4.18, 5.4.19, 5.4.20, 5.4.21, 5.4.22, 5.4.23, 5.4.24, 5.4.25, 5.4.26, 5.4.27, 5.4.28, 5.4.29, 5.4.30, 5.4.31, 5.4.32, 5.4.33, 5.4.34, 5.4.35, 5.4.36, 5.4.37, 5.4.38, 5.4.39, 5.4.40, 5.4.41, 5.4.42, 5.4.43, 5.4.44, 5.4.45, 5.4.46, 5.4.47, 5.4.48, 5.4.49, 5.4.50, 5.4.51, 5.4.52, 5.4.53, 5.4.54, 5.4.55, 5.4.56, 5.4.57, 5.4.58, 5.4.59, 5.4.60, 5.4.61, 5.4.62, 5.4.63, 5.4.64, 5.4.65, 5.4.66, 5.4.67, 5.4.68, 5.4.69, 5.4.70, 5.4.71, 5.4.72, 5.4.73, 5.4.74, 5.4.75, 5.4.76, 5.4.77, 5.4.78, 5.4.79, 5.4.80, 5.4.81, 5.4.82, 5.4.83, 5.4.84, 5.4.85, 5.4.86, 5.4.87, 5.4.88, 5.4.89, 5.4.90, 5.4.91, 5.4.92, 5.4.93, 5.4.94, 5.4.95, 5.4.96, 5.4.97, 5.4.98, 5.4.99, 5.4.100, 5.4.101, 5.4.102, 5.4.103, 5.4.104, 5.4.105, 5.4.106, 5.4.107, 5.4.108, 5.4.109, 5.4.110, 5.4.111, 5.4.112, 5.4.113, 5.4.114, 5.4.115, 5.4.116, 5.4.117, 5.4.118, 5.4.119, 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External links
https://git.kernel.org/stable/c/1ca2169cc19dca893c7aae6af122852097435d16
https://git.kernel.org/stable/c/1ec43100f7123010730b7ddfc3d5c2eac19e70e7
https://git.kernel.org/stable/c/221c27259324ec1404f028d4f5a0f2ae7f63ee23
https://git.kernel.org/stable/c/2bb139e483f8cbe488d19d8c1135ac3615e2668c
https://git.kernel.org/stable/c/41904cbb343d115931d6bf79aa2c815cac4ef72b
https://git.kernel.org/stable/c/5251041573850e5020cd447374e23010be698898
https://git.kernel.org/stable/c/58ab63d3ded2ca6141357a2b24eee8453d0f871d
https://git.kernel.org/stable/c/6488b96a79a26e19100ad872622f04e93b638d7f
https://git.kernel.org/stable/c/932b32ffd7604fb00b5c57e239a3cc4d901ccf6e
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.236
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.180
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.292
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.133
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.22
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.10
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.1
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.86

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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.