Memory leak in Linux kernel netfilter



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-48642
CWE-ID CWE-401
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Memory leak

EUVDB-ID: #VU89996

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-2022-48642

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the nf_tables_addchain() function in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 6.0 rc4

CPE2.3 External links

https://git.kernel.org/stable/c/b043a525a3f5520abb676a7cd8f6328fdf959e88
https://git.kernel.org/stable/c/08d7524f366a886b99b1630a24a27dd6e0d7f852
https://git.kernel.org/stable/c/985b031667c3177b9e7fb9787b989628e4271714
https://git.kernel.org/stable/c/9a4d6dd554b86e65581ef6b6638a39ae079b17ac
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.146
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.71
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0


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.



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