NULL pointer dereference in Linux kernel ipv4 netfilter

1) NULL pointer dereference

EUVDB-ID: #VU96145

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-42270

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 iptable_nat_init() function in net/ipv4/netfilter/iptable_nat.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

CPE2.3

External links

http://git.kernel.org/stable/c/95590a4929027769af35b153645c0ab6fd22b29b
http://git.kernel.org/stable/c/70014b73d7539fcbb6b4ff5f37368d7241d8e626
http://git.kernel.org/stable/c/08ed888b69a22647153fe2bec55b7cd0a46102cc
http://git.kernel.org/stable/c/5830aa863981d43560748aa93589c0695191d95d

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.