CVE-2024-42070 netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers

What is CVE-2024-42070?

CVE-2024-42070 is a medium-severity vulnerability in Linux kernel, published on 29 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: fully validate NFT_DATA_VALUE on store to data registers

register store validation for NFT_DATA_VALUE is conditional, however, the datatype is always either NFT_DATA_VALUE or NFT_DATA_VERDICT. This only requires a new helper function to infer the register type from the set datatype so this conditional check can be removed. Otherwise, pointer to chain object can be leaked through the registers.

Weakness: CWE-401

Which versions are affected by CVE-2024-42070?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-42070?

Apply the vendor's patch.

Is CVE-2024-42070 being exploited?

There is no known exploitation of CVE-2024-42070 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-47154, BELL-CVE-2024-42070, DEBIAN-CVE-2024-42070, GHSA-5h8j-93h4-mm7v, UBUNTU-CVE-2024-42070.